Subject: Re: [Fot] Dif. noise

From: Robert Lang via Fot <[email-masked]>
Date: Wed, 19 Aug 2020 15:38:36 +0000 (UTC)

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 CHECK IT BEFORE YOU DESTROY IT.=20

Whining is because the gears aren't meshing properly. This will result in p=
remature wear if you're lucky. If you are not lucky, you'll overheat the di=
ff and / or otherwise destroy it. Sometimes the noise can be from something=
 really dumb, like the ring gear bolts backing out and you find out when on=
e of the bolts wedge in the diff case with the resulting damage to everythi=
ng. Not that I've done that or anything.

And keep in mind that scrap steel prices are "fairly low".
Regards,Bob Lang

    On Wednesday, August 19, 2020, 10:59:08 AM EDT, McKearn McKearn via Fot=
 <[email-masked]> wrote: =20
=20
 Hi All.=C2=A0 I am hearing some whining going on behind me when driving my=
 68 GT6..=C2=A0It is only at neutral acceleration/deceleration and above 40=
 MPH ( There is no whine when accelerating or decelerating). =C2=A0 Stock 3=
.27:1 rear end.=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0=C2=A0=
 Any thoughts ?=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 Thanks Pat_____=
__________________________________________
[email-masked]

http://www.fot-racing.com

Archive: http://autox.team.net/archive http://www.team.net/pipermail/fot
@yahoo.com

 =20
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<html><head></head><body><div class="ydp8433395byahoo-style-wrap" style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:13px;"><div></div>
        <div dir="ltr" data-setdir="false">CHECK IT BEFORE YOU DESTROY IT. <br></div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">Whining is because the gears aren't meshing properly. This will result in premature wear if you're lucky. If you are not lucky, you'll overheat the diff and / or otherwise destroy it. Sometimes the noise can be from something really dumb, like the ring gear bolts backing out and you find out when one of the bolts wedge in the diff case with the resulting damage to everything. Not that I've done that or anything.<br></div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">And keep in mind that scrap steel prices are "fairly low".</div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">Regards,</div><div dir="ltr" data-setdir="false">Bob Lang</div><div dir="ltr" data-setdir="false"><br></div><div><br></div>
        
        </div><div id="ydp256e4462yahoo_quoted_7989025310" class="ydp256e4462yahoo_quoted">
            <div style="font-family:'Helvetica Neue', Helvetica, Arial, sans-serif;font-size:13px;color:#26282a;">
                
                <div>
                    On Wednesday, August 19, 2020, 10:59:08 AM EDT, McKearn McKearn via Fot &lt;[email-masked]&gt; wrote:
                </div>
                <div><br></div>
                <div><br></div>
                <div><div id="ydp256e4462yiv0720270631"><div dir="ltr"><div>Hi All.</div><div>&nbsp; I am hearing some whining going on behind me when driving my 68 GT6..</div><div>&nbsp;It is only at neutral acceleration/deceleration and above 40 MPH ( There is no whine when accelerating or decelerating). &nbsp; Stock 3.27:1 rear end.</div><div>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp; Any thoughts ?</div><div>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Thanks Pat</div></div>
</div>_______________________________________________<br><a href="mailto:[email-masked]" rel="nofollow" target="_blank">[email-masked]</a><br><br><a href="http://www.fot-racing.com" rel="nofollow" target="_blank">http://www.fot-racing.com</a><br><br>Donate: <a href="http://www.team.net/donate.html" rel="nofollow" target="_blank">http://www.team.net/donate.html</a><br>Archive: <a href="http://autox.team.net/archive " rel="nofollow" target="_blank">http://autox.team.net/archive </a><a href="http://www.team.net/pipermail/fot" rel="nofollow" target="_blank">http://www.team.net/pipermail/fot</a><br>Unsubscribe/Manage: <a href="http://autox.team.net/mailman/options/fot/[email-masked]" rel="nofollow" target="_blank">http://autox.team.net/mailman/options/fot/[email-masked]</a><br><br><br></div>
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_______________________________________________
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From: Brad Eells via Fot <[email-masked]>
Date: Wed, 19 Aug 2020 11:42:08 -0400

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The whining I hear in the Spitfire is usually about my lap times...

:-)

Brad Eells
Sent from my iPhone

> On Aug 19, 2020, at 11:38 AM, Robert Lang via Fot <[email-masked]> wro=
te:
> =EF=BB=BF
remature wear if you're lucky. If you are not lucky, you'll overheat the dif=
f and / or otherwise destroy it. Sometimes the noise can be from something r=
eally dumb, like the ring gear bolts backing out and you find out when one o=
f the bolts wedge in the diff case with the resulting damage to everything. N=
ot that I've done that or anything.
> Regards,
> Bob Lang
> On Wednesday, August 19, 2020, 10:59:08 AM EDT, McKearn McKearn via Fot <f=
[email-masked]> wrote:
>=20
>=20
> Hi All.
>   I am hearing some whining going on behind me when driving my 68 GT6..
>  It is only at neutral acceleration/deceleration and above 40 MPH ( There i=
s no whine when accelerating or decelerating).   Stock 3.27:1 rear end.
>                                                            Any thoughts ?
>                                   Thanks Pat
> Donate: http://www.team.net/donate.html
> Unsubscribe/Manage: http://autox.team.net/mailman/options/fot/robertlangtr=
[email-masked]
> Donate: http://www.team.net/donate.html
> Unsubscribe/Manage: http://autox.team.net/mailman/options/fot/tr4abrad@gma=
il.com

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<html><head><meta http-equiv=3D"content-type" content=3D"text/html; charset=3D=
utf-8"></head><body dir=3D"auto"><br>The whining I hear in the Spitfire is u=
sually about my lap times...<div><br></div><div>:-)</div><div><br><div dir=3D=
"ltr">Brad Eells<div>Sent from my iPhone</div></div><div dir=3D"ltr"><br><bl=
ockquote type=3D"cite">On Aug 19, 2020, at 11:38 AM, Robert Lang via Fot &lt=
;[email-masked]&gt; wrote:<br><br></blockquote></div><blockquote type=3D=
"cite"><div dir=3D"ltr">=EF=BB=BF<div class=3D"ydp8433395byahoo-style-wrap" s=
tyle=3D"font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:1=
3px;"><div></div>
        <div dir=3D"ltr" data-setdir=3D"false">CHECK IT BEFORE YOU DESTROY I=
T. <br></div><div dir=3D"ltr" data-setdir=3D"false"><br></div><div dir=3D"lt=
r" data-setdir=3D"false">Whining is because the gears aren't meshing properl=
y. This will result in premature wear if you're lucky. If you are not lucky,=
 you'll overheat the diff and / or otherwise destroy it. Sometimes the noise=
 can be from something really dumb, like the ring gear bolts backing out and=
 you find out when one of the bolts wedge in the diff case with the resultin=
g damage to everything. Not that I've done that or anything.<br></div><div d=
ir=3D"ltr" data-setdir=3D"false"><br></div><div dir=3D"ltr" data-setdir=3D"f=
alse">And keep in mind that scrap steel prices are "fairly low".</div><div d=
ir=3D"ltr" data-setdir=3D"false"><br></div><div dir=3D"ltr" data-setdir=3D"f=
alse">Regards,</div><div dir=3D"ltr" data-setdir=3D"false">Bob Lang</div><di=
v dir=3D"ltr" data-setdir=3D"false"><br></div><div><br></div>
       =20
        </div><div id=3D"ydp256e4462yahoo_quoted_7989025310" class=3D"ydp256=
e4462yahoo_quoted">
            <div style=3D"font-family:'Helvetica Neue', Helvetica, Arial, sa=
ns-serif;font-size:13px;color:#26282a;">
               =20
                <div>
                    On Wednesday, August 19, 2020, 10:59:08 AM EDT, McKearn M=
cKearn via Fot &lt;[email-masked]&gt; wrote:
                </div>
                <div><br></div>
                <div><br></div>
                <div><div id=3D"ydp256e4462yiv0720270631"><div dir=3D"ltr"><=
div>Hi All.</div><div>&nbsp; I am hearing some whining going on behind me wh=
en driving my 68 GT6..</div><div>&nbsp;It is only at neutral acceleration/de=
celeration and above 40 MPH ( There is no whine when accelerating or deceler=
ating). &nbsp; Stock 3.27:1 rear end.</div><div>&nbsp; &nbsp; &nbsp; &nbsp; &=
nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &=
nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &=
nbsp; &nbsp; &nbsp;&nbsp; Any thoughts ?</div><div>&nbsp; &nbsp; &nbsp; &nbs=
p; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nb=
sp; &nbsp; &nbsp; Thanks Pat</div></div>
</div>_______________________________________________<br><a href=3D"mailto:f=
[email-masked]" rel=3D"nofollow" target=3D"_blank">[email-masked]</a>=
<br><br><a href=3D"http://www.fot-racing.com" rel=3D"nofollow" target=3D"_bl=
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        </div><span>_______________________________________________</span><b=
r><span>[email-masked]</span><br><span></span><br><span>http://www.fot-r=
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From: Chip Collingwood via Fot <[email-masked]>
Date: Wed, 19 Aug 2020 11:45:11 -0400

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most likely the pinion has lost its preload and it is moving in and out
along the face of the ring gear...ie changing the pattern and causing a
whine. Sometimes the carrier bearings will wear and cause a pattern shift,
but usually a growling from the bearings accompanies the whine

Chip Collingwood
theukmotorsports.com
(804) 564-1839

On Wed, Aug 19, 2020 at 11:39 AM Robert Lang via Fot <[email-masked]>
wrote:

> CHECK IT BEFORE YOU DESTROY IT.
>
> Whining is because the gears aren't meshing properly. This will result in
> premature wear if you're lucky. If you are not lucky, you'll overheat the
> diff and / or otherwise destroy it. Sometimes the noise can be from
> something really dumb, like the ring gear bolts backing out and you find
> out when one of the bolts wedge in the diff case with the resulting damage
> to everything. Not that I've done that or anything.
>
> On Wednesday, August 19, 2020, 10:59:08 AM EDT, McKearn McKearn via Fot <
> [email-masked]> wrote:
>
>
> Hi All.
>  It is only at neutral acceleration/deceleration and above 40 MPH ( There
> is no whine when accelerating or decelerating).   Stock 3.27:1 rear end.
>                                                            Any thoughts ?
>                                   Thanks Pat
> Unsubscribe/Manage:
> http://autox.team.net/mailman/options/fot/[email-masked]
>
>
> Unsubscribe/Manage <http://www.team.net/pipermail/fotUnsubscribe/Manage>:
> http://autox.team.net/mailman/options/fot/[email-masked]
>
>
>

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<div dir=3D"ltr"><div class=3D"gmail_default" style=3D"font-family:tahoma,s=
ans-serif;color:#0000ff">most likely the pinion has lost its preload and it=
 is moving in and out along the face of the ring gear...ie changing the pat=
tern and causing a whine. Sometimes the carrier bearings will wear and caus=
e a pattern shift, but usually a growling from the bearings accompanies the=
 whine</div><div class=3D"gmail_default" style=3D"font-family:tahoma,sans-s=
erif;color:#0000ff"><br></div><div><div dir=3D"ltr" class=3D"gmail_signatur=
e" data-smartmail=3D"gmail_signature"><div dir=3D"ltr"><div><font face=3D"c=
omic sans ms, sans-serif" color=3D"#0000ff">Chip Collingwood</font><div><a =
href=3D"http://theukmotorsports.com" target=3D"_blank"><font face=3D"comic =
sans ms, sans-serif" color=3D"#0000ff">theukmotorsports.com</font></a></div=
><div><font face=3D"comic sans ms, sans-serif" color=3D"#0000ff">(804) 564-=
1839</font></div></div></div></div></div><br></div><br><div class=3D"gmail_=
quote"><div dir=3D"ltr" class=3D"gmail_attr">On Wed, Aug 19, 2020 at 11:39 =
AM Robert Lang via Fot &lt;<a href=3D"mailto:[email-masked]">fot@autox.=
team.net</a>&gt; wrote:<br></div><blockquote class=3D"gmail_quote" style=3D=
"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-le=
ft:1ex"><div><div style=3D"font-family:&quot;Helvetica Neue&quot;,Helvetica=
,Arial,sans-serif;font-size:13px"><div></div>
        <div dir=3D"ltr">CHECK IT BEFORE YOU DESTROY IT. <br></div><div dir=
=3D"ltr"><br></div><div dir=3D"ltr">Whining is because the gears aren&#39;t=
 meshing properly. This will result in premature wear if you&#39;re lucky. =
If you are not lucky, you&#39;ll overheat the diff and / or otherwise destr=
oy it. Sometimes the noise can be from something really dumb, like the ring=
 gear bolts backing out and you find out when one of the bolts wedge in the=
 diff case with the resulting damage to everything. Not that I&#39;ve done =
that or anything.<br></div><div dir=3D"ltr"><br></div><div dir=3D"ltr">And =
keep in mind that scrap steel prices are &quot;fairly low&quot;.</div><div =
dir=3D"ltr"><br></div><div dir=3D"ltr">Regards,</div><div dir=3D"ltr">Bob L=
ang</div><div dir=3D"ltr"><br></div><div><br></div>
       =20
        </div><div id=3D"gmail-m_4127443740588497965ydp256e4462yahoo_quoted=
_7989025310">
            <div style=3D"font-family:&quot;Helvetica Neue&quot;,Helvetica,=
Arial,sans-serif;font-size:13px;color:rgb(38,40,42)">
               =20
                <div>
                    On Wednesday, August 19, 2020, 10:59:08 AM EDT, McKearn=
 McKearn via Fot &lt;<a href=3D"mailto:[email-masked]" target=3D"_blank=
">[email-masked]</a>&gt; wrote:
                </div>
                <div><br></div>
                <div><br></div>
                <div><div id=3D"gmail-m_4127443740588497965ydp256e4462yiv07=
20270631"><div dir=3D"ltr"><div>Hi All.</div><div>=C2=A0 I am hearing some =
whining going on behind me when driving my 68 GT6..</div><div>=C2=A0It is o=
nly at neutral acceleration/deceleration and above 40 MPH ( There is no whi=
ne when accelerating or decelerating). =C2=A0 Stock 3.27:1 rear end.</div><=
div>=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0=C2=A0 Any thoug=
hts ?</div><div>=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 Thanks Pat</div=
></div>
</div>_______________________________________________<br><a href=3D"mailto:=
[email-masked]" rel=3D"nofollow" target=3D"_blank">[email-masked]</=
a><br><br><a href=3D"http://www.fot-racing.com" rel=3D"nofollow" target=3D"=
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            </div>
        </div></div>_______________________________________________<br>
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/a><br>
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Archive: <a href=3D"http://autox.team.net/archive" rel=3D"noreferrer" targe=
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</blockquote></div>

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From: vfracing--- via Fot <[email-masked]>
Date: Wed, 19 Aug 2020 15:48:15 +0000 (UTC)

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Pat;If it's a stock set up from the factory, my first suspicion would be on=
e of the differential carrier bearings. =C2=A0That is, if you are certain i=
t is from the differential. Wheel bearings can be checked by pitching the c=
ar side to side (no traffic, wide open parking lot) to change the loading a=
nd hence the level of whine.
But Bob is right: check it out NOW. The cover and perhaps the carrier shoul=
d be pulled and a visual inspection made. =C2=A0Look for pitting on the bea=
rings and gear teeth, check the pattern (before pulling the carrier) with B=
luing Compound (or, lacking that, bright colored paint)

Hopefully it's just a bearing,
Phil Gott

-----Original Message-----
From: Robert Lang via Fot <[email-masked]>
To: FOT list <[email-masked]>; McKearn McKearn <[email-masked]>
Sent: Wed, Aug 19, 2020 11:39 am
Subject: Re: [Fot] Dif. noise

com

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<div style=3D"font-size:10pt;font-family:arial,helvetica,sans-serif;color:b=
lack;"><div style=3D"font-family: arial,helvetica,sans-serif; font-size: 10=
pt; color: black;" data-mce-style=3D"font-family: arial,helvetica,sans-seri=
f; font-size: 10pt; color: black;">Pat;</div><div style=3D"font-family: ari=
al,helvetica,sans-serif; font-size: 10pt; color: black;" data-mce-style=3D"=
font-family: arial,helvetica,sans-serif; font-size: 10pt; color: black;">If=
 it's a stock set up from the factory, my first suspicion would be one of t=
he differential carrier bearings. &nbsp;That is, if you are certain it is f=
rom the differential. Wheel bearings can be checked by pitching the car sid=
e to side (no traffic, wide open parking lot) to change the loading and hen=
ce the level of whine.</div><div style=3D"font-family: arial,helvetica,sans=
-serif; font-size: 10pt; color: black;" data-mce-style=3D"font-family: aria=
l,helvetica,sans-serif; font-size: 10pt; color: black;"><br></div><div styl=
e=3D"font-family: arial,helvetica,sans-serif; font-size: 10pt; color: black=
;" data-mce-style=3D"font-family: arial,helvetica,sans-serif; font-size: 10=
pt; color: black;">But Bob is right: check it out NOW. The cover and perhap=
s the carrier should be pulled and a visual inspection made. &nbsp;Look for=
 pitting on the bearings and gear teeth, check the pattern (before pulling =
the carrier) with Bluing Compound (or, lacking that, bright colored paint)<=
br></div><div style=3D"font-family: arial,helvetica,sans-serif; font-size: =
10pt; color: black;" data-mce-style=3D"font-family: arial,helvetica,sans-se=
rif; font-size: 10pt; color: black;"><br></div><div style=3D"font-family: a=
rial,helvetica,sans-serif; font-size: 10pt; color: black;" data-mce-style=
=3D"font-family: arial,helvetica,sans-serif; font-size: 10pt; color: black;=
">Hopefully it's just a bearing,</div><div style=3D"font-family: arial,helv=
etica,sans-serif; font-size: 10pt; color: black;" data-mce-style=3D"font-fa=
mily: arial,helvetica,sans-serif; font-size: 10pt; color: black;"><br></div=
><div style=3D"font-family: arial,helvetica,sans-serif; font-size: 10pt; co=
lor: black;" data-mce-style=3D"font-family: arial,helvetica,sans-serif; fon=
t-size: 10pt; color: black;">Phil Gott</div><div style=3D"font-family: aria=
l,helvetica,sans-serif; font-size: 10pt; color: black;" data-mce-style=3D"f=
ont-family: arial,helvetica,sans-serif; font-size: 10pt; color: black;"><br=
><br>-----Original Message-----<br>From: Robert Lang via Fot &lt;fot@autox.=
team.net&gt;<br>To: FOT list &lt;[email-masked]&gt;; McKearn McKearn &l=
t;[email-masked]&gt;<br>Sent: Wed, Aug 19, 2020 11:39 am<br>Subject: Re=
: [Fot] Dif. noise<br><br></div><div id=3D"yiv9913073415"><div><div class=
=3D"yiv9913073415ydp8433395byahoo-style-wrap" style=3D"font-family: Helveti=
ca Neue, Helvetica, Arial, sans-serif; font-size: 13px;" data-mce-style=3D"=
font-family: Helvetica Neue, Helvetica, Arial, sans-serif; font-size: 13px;=
"><div></div>
        <div dir=3D"ltr">CHECK IT BEFORE YOU DESTROY IT. <br clear=3D"none"=
></div><div dir=3D"ltr"><br clear=3D"none"></div><div dir=3D"ltr">Whining i=
s because the gears aren't meshing properly. This will result in premature =
wear if you're lucky. If you are not lucky, you'll overheat the diff and / =
or otherwise destroy it. Sometimes the noise can be from something really d=
umb, like the ring gear bolts backing out and you find out when one of the =
bolts wedge in the diff case with the resulting damage to everything. Not t=
hat I've done that or anything.<br clear=3D"none"></div><div dir=3D"ltr"><b=
r clear=3D"none"></div><div dir=3D"ltr">And keep in mind that scrap steel p=
rices are "fairly low".</div><div dir=3D"ltr"><br clear=3D"none"></div><div=
 dir=3D"ltr">Regards,</div><div dir=3D"ltr">Bob Lang</div><div dir=3D"ltr">=
<br clear=3D"none"></div><div><br clear=3D"none"></div>
       =20
        </div><div class=3D"yiv9913073415ydp256e4462yahoo_quoted" id=3D"yiv=
9913073415ydp256e4462yahoo_quoted_7989025310">
            <div style=3D"font-family: 'Helvetica Neue', Helvetica, Arial, =
sans-serif; font-size: 13px; color: #26282a;" data-mce-style=3D"font-family=
: 'Helvetica Neue', Helvetica, Arial, sans-serif; font-size: 13px; color: #=
26282a;">
               =20
                <div class=3D"yiv9913073415yqt6610842803" id=3D"yiv99130734=
15yqt68010"><div>
                    On Wednesday, August 19, 2020, 10:59:08 AM EDT, McKearn=
 McKearn via Fot &lt;[email-masked]&gt; wrote:
                </div>
                <div><br clear=3D"none"></div>
                <div><br clear=3D"none"></div>
                <div><div id=3D"yiv9913073415ydp256e4462yiv0720270631"><div=
 dir=3D"ltr"><div>Hi All.</div><div>&nbsp; I am hearing some whining going =
on behind me when driving my 68 GT6..</div><div>&nbsp;It is only at neutral=
 acceleration/deceleration and above 40 MPH ( There is no whine when accele=
rating or decelerating). &nbsp; Stock 3.27:1 rear end.</div><div>&nbsp; &nb=
sp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &=
nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;=
 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp; Any thoughts ?</div><div>&=
nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;=
 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Thanks Pat</div></div>
</div>_______________________________________________<br clear=3D"none"><a =
rel=3D"noopener noreferrer" shape=3D"rect" ymailto=3D"mailto:[email-masked]=
.net" target=3D"_blank" href=3D"mailto:[email-masked]">[email-masked]=
et</a><br clear=3D"none"><br clear=3D"none"><a rel=3D"noopener noreferrer" =
shape=3D"rect" target=3D"_blank" href=3D"http://www.fot-racing.com/">http:/=
/www.fot-racing.com</a><br clear=3D"none"><br clear=3D"none">Donate: <a rel=
=3D"noopener noreferrer" shape=3D"rect" target=3D"_blank" href=3D"http://ww=
w.team.net/donate.html">http://www.team.net/donate.html</a><br clear=3D"non=
e">Archive: <a rel=3D"noopener noreferrer" shape=3D"rect" target=3D"_blank"=
 href=3D"http://autox.team.net/archive">http://autox.team.net/archive </a><=
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://www.team.net/pipermail/fot">http://www.team.net/pipermail/fot</a><br cle=
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t" target=3D"_blank" href=3D"http://autox.team.net/mailman/options/fot/robe=
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[email-masked]</a><br clear=3D"none"><br clear=3D"none"><br clear=3D"none"></d=
iv></div>
            </div>
        </div></div></div><div class=3D"yqt6610842803" id=3D"yqt88997">____=
___________________________________________<br clear=3D"none"><a shape=3D"r=
ect" ymailto=3D"mailto:[email-masked]" rel=3D"noopener noreferrer" href=
=3D"mailto:[email-masked]">[email-masked]</a><br clear=3D"none"><br=
 clear=3D"none"><a shape=3D"rect" target=3D"_blank" rel=3D"noopener norefer=
rer" href=3D"http://www.fot-racing.com/">http://www.fot-racing.com</a><br c=
lear=3D"none"><br clear=3D"none">Donate: <a shape=3D"rect" target=3D"_blank=
" rel=3D"noopener noreferrer" href=3D"http://www.team.net/donate.html">http=
://www.team.net/donate.html</a><br clear=3D"none">Archive: <a shape=3D"rect=
" target=3D"_blank" rel=3D"noopener noreferrer" href=3D"http://autox.team.n=
et/archive">http://autox.team.net/archive </a><a shape=3D"rect" target=3D"_=
blank" rel=3D"noopener noreferrer" href=3D"http://www.team.net/pipermail/fo=
t">http://www.team.net/pipermail/fot</a><br clear=3D"none">Unsubscribe/Mana=
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eam.net/mailman/options/fot/[email-masked]</a><br clear=3D"none"><br clea=
r=3D"none"><br clear=3D"none"></div></div>
------=_Part_3315778_865422178.1597852095999--

--===============1177279862390673261==
Content-Transfer-Encoding: 7bit
Content-Disposition: inline

--===============1177279862390673261==--

---

From: Scott Janzen via Fot <[email-masked]>
Date: Wed, 19 Aug 2020 11:52:26 -0400

--===============1915050700937043127==
	boundary="Apple-Mail=_2281D0E8-F2E1-4414-9F69-DDABEB44F2EA"

--Apple-Mail=_2281D0E8-F2E1-4414-9F69-DDABEB44F2EA
Content-Transfer-Encoding: quoted-printable
	charset=utf-8

You can=E2=80=99t really =E2=80=9Cpull the cover=E2=80=9D on a Spit/GT6 =
diff, but it=E2=80=99s easy enough to drop the whole diff and much =
easier to examine on the bench. =20

On Aug 19, 2020, at 11:48 AM, vfracing--- via Fot <[email-masked]> =
wrote:

Pat;
If it's a stock set up from the factory, my first suspicion would be one =
of the differential carrier bearings.  That is, if you are certain it is =
from the differential. Wheel bearings can be checked by pitching the car =
side to side (no traffic, wide open parking lot) to change the loading =
and hence the level of whine.

But Bob is right: check it out NOW. The cover and perhaps the carrier =
should be pulled and a visual inspection made.  Look for pitting on the =
bearings and gear teeth, check the pattern (before pulling the carrier) =
with Bluing Compound (or, lacking that, bright colored paint)

Phil Gott

-----Original Message-----
From: Robert Lang via Fot <[email-masked]>
To: FOT list <[email-masked]>; McKearn McKearn <[email-masked]>
Sent: Wed, Aug 19, 2020 11:39 am
Subject: Re: [Fot] Dif. noise

Whining is because the gears aren't meshing properly. This will result =
in premature wear if you're lucky. If you are not lucky, you'll overheat =
the diff and / or otherwise destroy it. Sometimes the noise can be from =
something really dumb, like the ring gear bolts backing out and you find =
out when one of the bolts wedge in the diff case with the resulting =
damage to everything. Not that I've done that or anything.

Regards,
Bob Lang

On Wednesday, August 19, 2020, 10:59:08 AM EDT, McKearn McKearn via Fot =
<[email-masked]> wrote:

Hi All.
  I am hearing some whining going on behind me when driving my 68 GT6..
 It is only at neutral acceleration/deceleration and above 40 MPH ( =
There is no whine when accelerating or decelerating).   Stock 3.27:1 =
rear end.
                                                           Any thoughts =
?
                                  Thanks Pat
_______________________________________________

http://www.fot-racing.com <http://www.fot-racing.com/>

<http://www.team.net/donate.html>
Archive: http://autox.team.net/archive  =
<http://autox.team.net/archive>http://www.team.net/pipermail/fot =
<http://www.team.net/pipermail/fot>
http://autox.team.net/mailman/options/fot/[email-masked] =
<http://autox.team.net/mailman/options/fot/[email-masked]>

http://www.fot-racing.com <http://www.fot-racing.com/>

<http://www.team.net/donate.html>
Archive: http://autox.team.net/archive  =
<http://autox.team.net/archive>http://www.team.net/pipermail/fot =
<http://www.team.net/pipermail/fot>
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<http://autox.team.net/mailman/options/fot/[email-masked]>

Archive: http://autox.team.net/archive http://www.team.net/pipermail/fot
http://autox.team.net/mailman/options/fot/[email-masked]

--Apple-Mail=_2281D0E8-F2E1-4414-9F69-DDABEB44F2EA
Content-Transfer-Encoding: quoted-printable
	charset=utf-8

<html><head><meta http-equiv=3D"Content-Type" content=3D"text/html; =
charset=3Dutf-8"></head><body style=3D"word-wrap: break-word; =
-webkit-nbsp-mode: space; line-break: after-white-space;" class=3D"">You =
can=E2=80=99t really =E2=80=9Cpull the cover=E2=80=9D on a Spit/GT6 =
diff, but it=E2=80=99s easy enough to drop the whole diff and much =
easier to examine on the bench. &nbsp;<br class=3D""><div><br =
class=3D""><div class=3D"">On Aug 19, 2020, at 11:48 AM, vfracing--- via =
Fot &lt;<a href=3D"mailto:[email-masked]" =
class=3D"">[email-masked]</a>&gt; wrote:</div><br =
class=3D"Apple-interchange-newline"><div class=3D""><div =
style=3D"font-size: 10pt; font-family: arial, helvetica, sans-serif;" =
class=3D""><div style=3D"font-family: arial, helvetica, sans-serif; =
font-size: 10pt;" data-mce-style=3D"font-family: =
arial,helvetica,sans-serif; font-size: 10pt; color: black;" =
class=3D"">Pat;</div><div style=3D"font-family: arial, helvetica, =
sans-serif; font-size: 10pt;" data-mce-style=3D"font-family: =
arial,helvetica,sans-serif; font-size: 10pt; color: black;" class=3D"">If =
it's a stock set up from the factory, my first suspicion would be one of =
the differential carrier bearings. &nbsp;That is, if you are certain it =
is from the differential. Wheel bearings can be checked by pitching the =
car side to side (no traffic, wide open parking lot) to change the =
loading and hence the level of whine.</div><div style=3D"font-family: =
arial, helvetica, sans-serif; font-size: 10pt;" =
data-mce-style=3D"font-family: arial,helvetica,sans-serif; font-size: =
10pt; color: black;" class=3D""><br class=3D""></div><div =
style=3D"font-family: arial, helvetica, sans-serif; font-size: 10pt;" =
data-mce-style=3D"font-family: arial,helvetica,sans-serif; font-size: =
10pt; color: black;" class=3D"">But Bob is right: check it out NOW. The =
cover and perhaps the carrier should be pulled and a visual inspection =
made. &nbsp;Look for pitting on the bearings and gear teeth, check the =
pattern (before pulling the carrier) with Bluing Compound (or, lacking =
that, bright colored paint)<br class=3D""></div><div style=3D"font-family:=
 arial, helvetica, sans-serif; font-size: 10pt;" =
data-mce-style=3D"font-family: arial,helvetica,sans-serif; font-size: =
10pt; color: black;" class=3D""><br class=3D""></div><div =
style=3D"font-family: arial, helvetica, sans-serif; font-size: 10pt;" =
data-mce-style=3D"font-family: arial,helvetica,sans-serif; font-size: =
10pt; color: black;" class=3D"">Hopefully it's just a bearing,</div><div =
style=3D"font-family: arial, helvetica, sans-serif; font-size: 10pt;" =
data-mce-style=3D"font-family: arial,helvetica,sans-serif; font-size: =
10pt; color: black;" class=3D""><br class=3D""></div><div =
style=3D"font-family: arial, helvetica, sans-serif; font-size: 10pt;" =
data-mce-style=3D"font-family: arial,helvetica,sans-serif; font-size: =
10pt; color: black;" class=3D"">Phil Gott</div><div style=3D"font-family: =
arial, helvetica, sans-serif; font-size: 10pt;" =
data-mce-style=3D"font-family: arial,helvetica,sans-serif; font-size: =
10pt; color: black;" class=3D""><br class=3D""><br =
class=3D"">-----Original Message-----<br class=3D"">From: Robert Lang =
via Fot &lt;<a href=3D"mailto:[email-masked]" =
class=3D"">[email-masked]</a>&gt;<br class=3D"">To: FOT list &lt;<a =
href=3D"mailto:[email-masked]" class=3D"">[email-masked]</a>&gt;; =
McKearn McKearn &lt;<a href=3D"mailto:[email-masked]" =
class=3D"">[email-masked]</a>&gt;<br class=3D"">Sent: Wed, Aug 19, =
2020 11:39 am<br class=3D"">Subject: Re: [Fot] Dif. noise<br =
class=3D""><br class=3D""></div><div id=3D"yiv9913073415" class=3D""><div =
class=3D""><div class=3D"yiv9913073415ydp8433395byahoo-style-wrap" =
style=3D"font-family: Helvetica Neue, Helvetica, Arial, sans-serif; =
font-size: 13px;" data-mce-style=3D"font-family: Helvetica Neue, =
Helvetica, Arial, sans-serif; font-size: 13px;"><div class=3D""></div>
        <div dir=3D"ltr" class=3D"">CHECK IT BEFORE YOU DESTROY IT. <br =
clear=3D"none" class=3D""></div><div dir=3D"ltr" class=3D""><br =
clear=3D"none" class=3D""></div><div dir=3D"ltr" class=3D"">Whining is =
because the gears aren't meshing properly. This will result in premature =
wear if you're lucky. If you are not lucky, you'll overheat the diff and =
/ or otherwise destroy it. Sometimes the noise can be from something =
really dumb, like the ring gear bolts backing out and you find out when =
one of the bolts wedge in the diff case with the resulting damage to =
everything. Not that I've done that or anything.<br clear=3D"none" =
class=3D""></div><div dir=3D"ltr" class=3D""><br clear=3D"none" =
class=3D""></div><div dir=3D"ltr" class=3D"">And keep in mind that scrap =
steel prices are "fairly low".</div><div dir=3D"ltr" class=3D""><br =
clear=3D"none" class=3D""></div><div dir=3D"ltr" =
class=3D"">Regards,</div><div dir=3D"ltr" class=3D"">Bob Lang</div><div =
dir=3D"ltr" class=3D""><br clear=3D"none" class=3D""></div><div =
class=3D""><br clear=3D"none" class=3D""></div>
       =20
        </div><div class=3D"yiv9913073415ydp256e4462yahoo_quoted" =
id=3D"yiv9913073415ydp256e4462yahoo_quoted_7989025310">
            <div style=3D"font-family: 'Helvetica Neue', Helvetica, =
Arial, sans-serif; font-size: 13px; color: #26282a;" =
data-mce-style=3D"font-family: 'Helvetica Neue', Helvetica, Arial, =
sans-serif; font-size: 13px; color: #26282a;" class=3D"">
               =20
                <div class=3D"yiv9913073415yqt6610842803" =
id=3D"yiv9913073415yqt68010"><div class=3D"">
                    On Wednesday, August 19, 2020, 10:59:08 AM EDT, =
McKearn McKearn via Fot &lt;<a href=3D"mailto:[email-masked]" =
class=3D"">[email-masked]</a>&gt; wrote:
                </div>
                <div class=3D""><br clear=3D"none" class=3D""></div>
                <div class=3D""><br clear=3D"none" class=3D""></div>
                <div class=3D""><div =
id=3D"yiv9913073415ydp256e4462yiv0720270631" class=3D""><div dir=3D"ltr" =
class=3D""><div class=3D"">Hi All.</div><div class=3D"">&nbsp; I am =
hearing some whining going on behind me when driving my 68 =
GT6..</div><div class=3D"">&nbsp;It is only at neutral =
acceleration/deceleration and above 40 MPH ( There is no whine when =
accelerating or decelerating). &nbsp; Stock 3.27:1 rear end.</div><div =
class=3D"">&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; =
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; =
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; =
&nbsp;&nbsp; Any thoughts ?</div><div class=3D"">&nbsp; &nbsp; &nbsp; =
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; =
&nbsp; &nbsp; &nbsp; &nbsp; Thanks Pat</div></div>
</div>_______________________________________________<br clear=3D"none" =
class=3D""><a rel=3D"noopener noreferrer" shape=3D"rect" =
ymailto=3D"mailto:[email-masked]" target=3D"_blank" =
href=3D"mailto:[email-masked]" class=3D"">[email-masked]</a><br =
clear=3D"none" class=3D""><br clear=3D"none" class=3D""><a rel=3D"noopener=
 noreferrer" shape=3D"rect" target=3D"_blank" =
href=3D"http://www.fot-racing.com/" =
class=3D"">http://www.fot-racing.com</a><br clear=3D"none" class=3D""><br =
clear=3D"none" class=3D"">Donate: <a rel=3D"noopener noreferrer" =
shape=3D"rect" target=3D"_blank" href=3D"http://www.team.net/donate.html" =
class=3D"">http://www.team.net/donate.html</a><br clear=3D"none" =
class=3D"">Archive: <a rel=3D"noopener noreferrer" shape=3D"rect" =
target=3D"_blank" href=3D"http://autox.team.net/archive" =
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noreferrer" shape=3D"rect" target=3D"_blank" =
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clear=3D"none" class=3D""></div></div>
            </div>
        </div></div></div><div class=3D"yqt6610842803" =
id=3D"yqt88997">_______________________________________________<br =
clear=3D"none" class=3D""><a shape=3D"rect" =
ymailto=3D"mailto:[email-masked]" rel=3D"noopener noreferrer" =
href=3D"mailto:[email-masked]" class=3D"">[email-masked]</a><br =
clear=3D"none" class=3D""><br clear=3D"none" class=3D""><a shape=3D"rect" =
target=3D"_blank" rel=3D"noopener noreferrer" =
href=3D"http://www.fot-racing.com/" =
class=3D"">http://www.fot-racing.com</a><br clear=3D"none" class=3D""><br =
clear=3D"none" class=3D"">Donate: <a shape=3D"rect" target=3D"_blank" =
rel=3D"noopener noreferrer" href=3D"http://www.team.net/donate.html" =
class=3D"">http://www.team.net/donate.html</a><br clear=3D"none" =
class=3D"">Archive: <a shape=3D"rect" target=3D"_blank" rel=3D"noopener =
noreferrer" href=3D"http://autox.team.net/archive" =
class=3D"">http://autox.team.net/archive </a><a shape=3D"rect" =
target=3D"_blank" rel=3D"noopener noreferrer" =
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class=3D"">http://autox.team.net/mailman/options/fot/[email-masked]</a><=
br clear=3D"none" class=3D""><br clear=3D"none" class=3D""><br =
clear=3D"none" =
class=3D""></div></div>_______________________________________________<br =
class=3D""><a href=3D"mailto:[email-masked]" =
class=3D"">[email-masked]</a><br class=3D""><br =
class=3D"">http://www.fot-racing.com<br class=3D""><br class=3D"">Donate: =
http://autox.team.net/archive http://www.team.net/pipermail/fot<br =
class=3D"">Unsubscribe/Manage: =
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 class=3D""><br class=3D""></div></div><br class=3D""></body></html>=

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---

From: McKearn McKearn via Fot <[email-masked]>
Date: Wed, 19 Aug 2020 12:47:34 -0500

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Thanks for the replies. (Some of you :)
   I was pretty much planning to pull it apart again but was hoping someone
would humor me into not worrying about it ..
                                        P.J.

On Wed, Aug 19, 2020 at 10:52 AM Scott Janzen <[email-masked]> wrote:

> You can=E2=80=99t really =E2=80=9Cpull the cover=E2=80=9D on a Spit/GT6 d=
iff, but it=E2=80=99s easy enough
> to drop the whole diff and much easier to examine on the bench.
>
> On Aug 19, 2020, at 11:48 AM, vfracing--- via Fot <[email-masked]>
> wrote:
>
> Pat;
> If it's a stock set up from the factory, my first suspicion would be one
> of the differential carrier bearings.  That is, if you are certain it is
> from the differential. Wheel bearings can be checked by pitching the car
> side to side (no traffic, wide open parking lot) to change the loading an=
d
> hence the level of whine.
>
> But Bob is right: check it out NOW. The cover and perhaps the carrier
> should be pulled and a visual inspection made.  Look for pitting on the
> bearings and gear teeth, check the pattern (before pulling the carrier)
> out when one of the bolts wedge in the diff case with the resulting damag=
e
> http://autox.team.net/mailman/options/fot/[email-masked]
>
>

--000000000000495d5b05ad3e960f
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr"><div>Thanks for the replies. (Some of you :)</div><div>=C2=
=A0=C2=A0 I was pretty much planning to pull it apart again but was hoping =
someone would humor me into not worrying about it ..</div><div>=C2=A0 =C2=
=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 P.J.</div><div><br>=
</div><div>=C2=A0=C2=A0</div></div><br><div class=3D"gmail_quote"><div clas=
s=3D"gmail_attr" dir=3D"ltr">On Wed, Aug 19, 2020 at 10:52 AM Scott Janzen =
&lt;<a href=3D"mailto:[email-masked]">[email-masked]</a>&gt; wrote:<br></di=
v><blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;paddi=
ng-left:1ex;border-left-color:rgb(204,204,204);border-left-width:1px;border=
-left-style:solid"><div style=3D"overflow-wrap: break-word;">You can=E2=80=
=99t really =E2=80=9Cpull the cover=E2=80=9D on a Spit/GT6 diff, but it=E2=
=80=99s easy enough to drop the whole diff and much easier to examine on th=
e bench. =C2=A0<br><div><br><div>On Aug 19, 2020, at 11:48 AM, vfracing--- =
via Fot &lt;<a href=3D"mailto:[email-masked]" target=3D"_blank">fot@aut=
ox.team.net</a>&gt; wrote:</div><br><div><div style=3D"font-family:arial,he=
lvetica,sans-serif;font-size:10pt"><div style=3D"font-family:arial,helvetic=
a,sans-serif;font-size:10pt">Pat;</div><div style=3D"font-family:arial,helv=
etica,sans-serif;font-size:10pt">If it&#39;s a stock set up from the factor=
y, my first suspicion would be one of the differential carrier bearings.=C2=
=A0 That is, if you are certain it is from the differential. Wheel bearings=
 can be checked by pitching the car side to side (no traffic, wide open par=
king lot) to change the loading and hence the level of whine.</div><div sty=
le=3D"font-family:arial,helvetica,sans-serif;font-size:10pt"><br></div><div=
 style=3D"font-family:arial,helvetica,sans-serif;font-size:10pt">But Bob is=
 right: check it out NOW. The cover and perhaps the carrier should be pulle=
d and a visual inspection made.=C2=A0 Look for pitting on the bearings and =
gear teeth, check the pattern (before pulling the carrier) with Bluing Comp=
ound (or, lacking that, bright colored paint)<br></div><div style=3D"font-f=
amily:arial,helvetica,sans-serif;font-size:10pt"><br></div><div style=3D"fo=
nt-family:arial,helvetica,sans-serif;font-size:10pt">Hopefully it&#39;s jus=
t a bearing,</div><div style=3D"font-family:arial,helvetica,sans-serif;font=
-size:10pt"><br></div><div style=3D"font-family:arial,helvetica,sans-serif;=
font-size:10pt">Phil Gott</div><div style=3D"font-family:arial,helvetica,sa=
ns-serif;font-size:10pt"><br><br>-----Original Message-----<br>From: Robert=
 Lang via Fot &lt;<a href=3D"mailto:[email-masked]" target=3D"_blank">f=
[email-masked]</a>&gt;<br>To: FOT list &lt;<a href=3D"mailto:[email-masked]=
eam.net" target=3D"_blank">[email-masked]</a>&gt;; McKearn McKearn &lt;=
<a href=3D"mailto:[email-masked]" target=3D"_blank">[email-masked]<=
/a>&gt;<br>Sent: Wed, Aug 19, 2020 11:39 am<br>Subject: Re: [Fot] Dif. nois=
e<br><br></div><div id=3D"gmail-m_1305250608599246961yiv9913073415"><div><d=
iv style=3D"font-family:Helvetica Neue,Helvetica,Arial,sans-serif;font-size=
:13px"><div></div>
        <div dir=3D"ltr">CHECK IT BEFORE YOU DESTROY IT. <br clear=3D"none"=
></div><div dir=3D"ltr"><br clear=3D"none"></div><div dir=3D"ltr">Whining i=
s because the gears aren&#39;t meshing properly. This will result in premat=
ure wear if you&#39;re lucky. If you are not lucky, you&#39;ll overheat the=
 diff and / or otherwise destroy it. Sometimes the noise can be from someth=
ing really dumb, like the ring gear bolts backing out and you find out when=
 one of the bolts wedge in the diff case with the resulting damage to every=
thing. Not that I&#39;ve done that or anything.<br clear=3D"none"></div><di=
v dir=3D"ltr"><br clear=3D"none"></div><div dir=3D"ltr">And keep in mind th=
at scrap steel prices are &quot;fairly low&quot;.</div><div dir=3D"ltr"><br=
 clear=3D"none"></div><div dir=3D"ltr">Regards,</div><div dir=3D"ltr">Bob L=
ang</div><div dir=3D"ltr"><br clear=3D"none"></div><div><br clear=3D"none">=
</div>
       =20
        </div><div id=3D"gmail-m_1305250608599246961yiv9913073415ydp256e446=
2yahoo_quoted_7989025310">
            <div style=3D"color:rgb(38,40,42);font-family:&quot;Helvetica N=
eue&quot;,Helvetica,Arial,sans-serif;font-size:13px">
               =20
                <div id=3D"gmail-m_1305250608599246961yiv9913073415yqt68010=
"><div>
                    On Wednesday, August 19, 2020, 10:59:08 AM EDT, McKearn=
 McKearn via Fot &lt;<a href=3D"mailto:[email-masked]" target=3D"_blank=
">[email-masked]</a>&gt; wrote:
                </div>
                <div><br clear=3D"none"></div>
                <div><br clear=3D"none"></div>
                <div><div id=3D"gmail-m_1305250608599246961yiv9913073415ydp=
256e4462yiv0720270631"><div dir=3D"ltr"><div>Hi All.</div><div>=C2=A0 I am =
hearing some whining going on behind me when driving my 68 GT6..</div><div>=
=C2=A0It is only at neutral acceleration/deceleration and above 40 MPH ( Th=
ere is no whine when accelerating or decelerating). =C2=A0 Stock 3.27:1 rea=
r end.</div><div>=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0=
=C2=A0 Any thoughts ?</div><div>=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
=A0 Thanks Pat</div></div>
</div>_______________________________________________<br clear=3D"none"><a =
href=3D"mailto:[email-masked]" target=3D"_blank" rel=3D"noopener norefe=
rrer" shape=3D"rect">[email-masked]</a><br clear=3D"none"><br clear=3D"=
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ner noreferrer" shape=3D"rect">http://www.fot-racing.com</a><br clear=3D"no=
ne"><br clear=3D"none">Donate: <a href=3D"http://www.team.net/donate.html" =
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            </div>
        </div></div></div><div id=3D"gmail-m_1305250608599246961yqt88997">_=
______________________________________________<br clear=3D"none"><a href=3D=
"mailto:[email-masked]" target=3D"_blank" rel=3D"noopener noreferrer" s=
hape=3D"rect">[email-masked]</a><br clear=3D"none"><br clear=3D"none"><=
a href=3D"http://www.fot-racing.com/" target=3D"_blank" rel=3D"noopener nor=
eferrer" shape=3D"rect">http://www.fot-racing.com</a><br clear=3D"none"><br=
 clear=3D"none">Donate: <a href=3D"http://www.team.net/donate.html" target=
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/archive" target=3D"_blank" rel=3D"noopener noreferrer" shape=3D"rect">http=
://autox.team.net/archive </a><a href=3D"http://www.team.net/pipermail/fot"=
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lear=3D"none"></div></div>_______________________________________________<b=
r><a href=3D"mailto:[email-masked]" target=3D"_blank">[email-masked]=
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/www.fot-racing.com</a><br><br>Donate: <a href=3D"http://www.team.net/donat=
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r></div></div><br></div></blockquote></div>

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---

From: Scott Janzen via Fot <[email-masked]>
Date: Wed, 19 Aug 2020 13:51:38 -0400

--===============6242861876409972859==
	boundary="Apple-Mail=_BB1A43EF-8354-4BB3-830E-0A9725D0933D"

--Apple-Mail=_BB1A43EF-8354-4BB3-830E-0A9725D0933D
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	charset=utf-8

well, there is the "ignore it" approach.  If you have a spare diff or =
three, no big deal - you could drive 'til it craps out, though at that =
point a rebuild is probably out of the question! =20
Back in the old days in Pittsburgh, when I got a $200 car every winter =
to drive through the ice, salt and potholes, there was no maintenance, =
as long as it started.  Of course, that=E2=80=99s because I was =
preserving my sports car in the garage.

On Aug 19, 2020, at 1:47 PM, McKearn McKearn <[email-masked]> wrote:

Thanks for the replies. (Some of you :)
   I was pretty much planning to pull it apart again but was hoping =
someone would humor me into not worrying about it ..
                                        P.J.

 =20

On Wed, Aug 19, 2020 at 10:52 AM Scott Janzen <[email-masked] =
You can=E2=80=99t really =E2=80=9Cpull the cover=E2=80=9D on a Spit/GT6 =
diff, but it=E2=80=99s easy enough to drop the whole diff and much =
easier to examine on the bench. =20

On Aug 19, 2020, at 11:48 AM, vfracing--- via Fot <[email-masked] =

Pat;

Phil Gott

-----Original Message-----
From: Robert Lang via Fot <[email-masked] =
Sent: Wed, Aug 19, 2020 11:39 am
Subject: Re: [Fot] Dif. noise

Regards,
Bob Lang

Hi All.

<http://www.team.net/donate.html>
Archive: http://autox.team.net/archive <http://autox.team.net/archive> =
http://www.team.net/pipermail/fot <http://www.team.net/pipermail/fot>
http://autox.team.net/mailman/options/fot/[email-masked] =
<http://autox.team.net/mailman/options/fot/[email-masked]>

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<html><head><meta http-equiv=3D"Content-Type" content=3D"text/html; =
charset=3Dutf-8"></head><body style=3D"word-wrap: break-word; =
-webkit-nbsp-mode: space; line-break: after-white-space;" class=3D"">well,=
 there is the "ignore it" approach. &nbsp;If you have a spare diff or =
three, no big deal - you could drive 'til it craps out, though at that =
point a rebuild is probably out of the question! &nbsp;<div =
class=3D"">Back in the old days in Pittsburgh, when I got a $200 car =
every winter to drive through the ice, salt and potholes, there was no =
maintenance, as long as it started. &nbsp;Of course, that=E2=80=99s =
because I was preserving my sports car in the garage.<br =
class=3D""><div><br class=3D""><div class=3D"">On Aug 19, 2020, at 1:47 =
PM, McKearn McKearn &lt;<a href=3D"mailto:[email-masked]" =
class=3D"">[email-masked]</a>&gt; wrote:</div><br =
class=3D"Apple-interchange-newline"><div class=3D""><div dir=3D"ltr" =
class=3D""><div class=3D"">Thanks for the replies. (Some of you =
:)</div><div class=3D"">&nbsp;&nbsp; I was pretty much planning to pull =
it apart again but was hoping someone would humor me into not worrying =
about it ..</div><div class=3D"">&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; =
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; =
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; P.J.</div><div class=3D""><br =
class=3D""></div><div class=3D"">&nbsp;&nbsp;</div></div><br =
class=3D""><div class=3D"gmail_quote"><div class=3D"gmail_attr" =
dir=3D"ltr">On Wed, Aug 19, 2020 at 10:52 AM Scott Janzen &lt;<a =
href=3D"mailto:[email-masked]" class=3D"">[email-masked]</a>&gt; =
wrote:<br class=3D""></div><blockquote class=3D"gmail_quote" =
style=3D"margin:0px 0px 0px =
0.8ex;padding-left:1ex;border-left-color:rgb(204,204,204);border-left-widt=
h:1px;border-left-style:solid"><div style=3D"overflow-wrap: break-word;" =
class=3D"">You can=E2=80=99t really =E2=80=9Cpull the cover=E2=80=9D on =
a Spit/GT6 diff, but it=E2=80=99s easy enough to drop the whole diff and =
much easier to examine on the bench. &nbsp;<br class=3D""><div =
class=3D""><br class=3D""><div class=3D"">On Aug 19, 2020, at 11:48 AM, =
vfracing--- via Fot &lt;<a href=3D"mailto:[email-masked]" =
target=3D"_blank" class=3D"">[email-masked]</a>&gt; wrote:</div><br =
class=3D""><div class=3D""><div =
style=3D"font-family:arial,helvetica,sans-serif;font-size:10pt" =
class=3D""><div =
style=3D"font-family:arial,helvetica,sans-serif;font-size:10pt" =
class=3D"">Pat;</div><div =
style=3D"font-family:arial,helvetica,sans-serif;font-size:10pt" =
class=3D"">If it's a stock set up from the factory, my first suspicion =
would be one of the differential carrier bearings.&nbsp; That is, if you =
are certain it is from the differential. Wheel bearings can be checked =
by pitching the car side to side (no traffic, wide open parking lot) to =
change the loading and hence the level of whine.</div><div =
style=3D"font-family:arial,helvetica,sans-serif;font-size:10pt" =
class=3D""><br class=3D""></div><div =
style=3D"font-family:arial,helvetica,sans-serif;font-size:10pt" =
class=3D"">But Bob is right: check it out NOW. The cover and perhaps the =
carrier should be pulled and a visual inspection made.&nbsp; Look for =
pitting on the bearings and gear teeth, check the pattern (before =
pulling the carrier) with Bluing Compound (or, lacking that, bright =
colored paint)<br class=3D""></div><div =
style=3D"font-family:arial,helvetica,sans-serif;font-size:10pt" =
class=3D""><br class=3D""></div><div =
style=3D"font-family:arial,helvetica,sans-serif;font-size:10pt" =
class=3D"">Hopefully it's just a bearing,</div><div =
style=3D"font-family:arial,helvetica,sans-serif;font-size:10pt" =
class=3D""><br class=3D""></div><div =
style=3D"font-family:arial,helvetica,sans-serif;font-size:10pt" =
class=3D"">Phil Gott</div><div =
style=3D"font-family:arial,helvetica,sans-serif;font-size:10pt" =
class=3D""><br class=3D""><br class=3D"">-----Original Message-----<br =
class=3D"">From: Robert Lang via Fot &lt;<a =
href=3D"mailto:[email-masked]" target=3D"_blank" =
class=3D"">[email-masked]</a>&gt;<br class=3D"">To: FOT list &lt;<a =
href=3D"mailto:[email-masked]" target=3D"_blank" =
class=3D"">[email-masked]</a>&gt;; McKearn McKearn &lt;<a =
href=3D"mailto:[email-masked]" target=3D"_blank" =
class=3D"">[email-masked]</a>&gt;<br class=3D"">Sent: Wed, Aug 19, =
2020 11:39 am<br class=3D"">Subject: Re: [Fot] Dif. noise<br =
class=3D""><br class=3D""></div><div =
id=3D"gmail-m_1305250608599246961yiv9913073415" class=3D""><div =
class=3D""><div style=3D"font-family:Helvetica =
Neue,Helvetica,Arial,sans-serif;font-size:13px" class=3D""><div =
class=3D""></div>
        <div dir=3D"ltr" class=3D"">CHECK IT BEFORE YOU DESTROY IT. <br =
clear=3D"none" class=3D""></div><div dir=3D"ltr" class=3D""><br =
clear=3D"none" class=3D""></div><div dir=3D"ltr" class=3D"">Whining is =
because the gears aren't meshing properly. This will result in premature =
wear if you're lucky. If you are not lucky, you'll overheat the diff and =
/ or otherwise destroy it. Sometimes the noise can be from something =
really dumb, like the ring gear bolts backing out and you find out when =
one of the bolts wedge in the diff case with the resulting damage to =
everything. Not that I've done that or anything.<br clear=3D"none" =
class=3D""></div><div dir=3D"ltr" class=3D""><br clear=3D"none" =
class=3D""></div><div dir=3D"ltr" class=3D"">And keep in mind that scrap =
steel prices are "fairly low".</div><div dir=3D"ltr" class=3D""><br =
clear=3D"none" class=3D""></div><div dir=3D"ltr" =
class=3D"">Regards,</div><div dir=3D"ltr" class=3D"">Bob Lang</div><div =
dir=3D"ltr" class=3D""><br clear=3D"none" class=3D""></div><div =
class=3D""><br clear=3D"none" class=3D""></div>
       =20
        </div><div =
id=3D"gmail-m_1305250608599246961yiv9913073415ydp256e4462yahoo_quoted_7989=
025310" class=3D"">
            <div style=3D"color:rgb(38,40,42);font-family:&quot;Helvetica =
Neue&quot;,Helvetica,Arial,sans-serif;font-size:13px" class=3D"">
               =20
                <div =
id=3D"gmail-m_1305250608599246961yiv9913073415yqt68010" class=3D""><div =
class=3D"">
                    On Wednesday, August 19, 2020, 10:59:08 AM EDT, =
McKearn McKearn via Fot &lt;<a href=3D"mailto:[email-masked]" =
target=3D"_blank" class=3D"">[email-masked]</a>&gt; wrote:
                </div>
                <div class=3D""><br clear=3D"none" class=3D""></div>
                <div class=3D""><br clear=3D"none" class=3D""></div>
                <div class=3D""><div =
id=3D"gmail-m_1305250608599246961yiv9913073415ydp256e4462yiv0720270631" =
class=3D""><div dir=3D"ltr" class=3D""><div class=3D"">Hi All.</div><div =
class=3D"">&nbsp; I am hearing some whining going on behind me when =
driving my 68 GT6..</div><div class=3D"">&nbsp;It is only at neutral =
acceleration/deceleration and above 40 MPH ( There is no whine when =
accelerating or decelerating). &nbsp; Stock 3.27:1 rear end.</div><div =
class=3D"">&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; =
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; =
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; =
&nbsp;&nbsp; Any thoughts ?</div><div class=3D"">&nbsp; &nbsp; &nbsp; =
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; =
&nbsp; &nbsp; &nbsp; &nbsp; Thanks Pat</div></div>
</div>_______________________________________________<br clear=3D"none" =
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From: "John H. Hasty via Fot" <[email-masked]>
Date: Wed, 19 Aug 2020 18:00:48 +0000

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From: McKearn McKearn via Fot <[email-masked]>
Date: Wed, 19 Aug 2020 13:02:16 -0500

--===============7804578611560168845==

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Yah I know about the "ignore it approach".  Thats the reason I have this
differential in the car. The last one blew up and this one I got from Scott
B.   Put it in without checking it out and now here we are again..

On Wed, Aug 19, 2020 at 12:51 PM Scott Janzen <[email-masked]> wrote:

> well, there is the "ignore it" approach.  If you have a spare diff or
> three, no big deal - you could drive 'til it craps out, though at that
> point a rebuild is probably out of the question!
> Back in the old days in Pittsburgh, when I got a $200 car every winter to
> drive through the ice, salt and potholes, there was no maintenance, as lo=
ng
> as it started.  Of course, that=E2=80=99s because I was preserving my spo=
rts car in
> the garage.
>    I was pretty much planning to pull it apart again but was hoping
diff, but it=E2=80=99s easy
>> enough to drop the whole diff and much easier to examine on the bench.
>>
>> side to side (no traffic, wide open parking lot) to change the loading a=
nd
>> Whining is because the gears aren't meshing properly. This will result i=
n
>> premature wear if you're lucky. If you are not lucky, you'll overheat th=
e
>> out when one of the bolts wedge in the diff case with the resulting dama=
ge
>> On Wednesday, August 19, 2020, 10:59:08 AM EDT, McKearn McKearn via Fot =
<
>>  It is only at neutral acceleration/deceleration and above 40 MPH ( Ther=
e
?
>>                                   Thanks Pat

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<div dir=3D"ltr"><div>Yah I know about the &quot;ignore it approach&quot;.=
=C2=A0 Thats the reason I have this differential in the car. The last one b=
lew up and this one I got from Scott B. =C2=A0 Put it in without checking i=
t out and now here we are again..</div><div>=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0=
=C2=A0</div></div><br><div class=3D"gmail_quote"><div class=3D"gmail_attr" =
dir=3D"ltr">On Wed, Aug 19, 2020 at 12:51 PM Scott Janzen &lt;<a href=3D"ma=
ilto:[email-masked]">[email-masked]</a>&gt; wrote:<br></div><blockquote cla=
ss=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;padding-left:1ex;borde=
r-left-color:rgb(204,204,204);border-left-width:1px;border-left-style:solid=
"><div style=3D"overflow-wrap: break-word;">well, there is the &quot;ignore=
 it&quot; approach.=C2=A0 If you have a spare diff or three, no big deal - =
you could drive &#39;til it craps out, though at that point a rebuild is pr=
obably out of the question! =C2=A0<div>Back in the old days in Pittsburgh, =
when I got a $200 car every winter to drive through the ice, salt and potho=
les, there was no maintenance, as long as it started.=C2=A0 Of course, that=
=E2=80=99s because I was preserving my sports car in the garage.<br><div><b=
r><div>On Aug 19, 2020, at 1:47 PM, McKearn McKearn &lt;<a href=3D"mailto:m=
[email-masked]" target=3D"_blank">[email-masked]</a>&gt; wrote:</div=
><br><div><div dir=3D"ltr"><div>Thanks for the replies. (Some of you :)</di=
v><div>=C2=A0=C2=A0 I was pretty much planning to pull it apart again but w=
as hoping someone would humor me into not worrying about it ..</div><div>=
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 P.J.</di=
v><div><br></div><div>=C2=A0=C2=A0</div></div><br><div class=3D"gmail_quote=
"><div class=3D"gmail_attr" dir=3D"ltr">On Wed, Aug 19, 2020 at 10:52 AM Sc=
ott Janzen &lt;<a href=3D"mailto:[email-masked]" target=3D"_blank">sjanzen@=
me.com</a>&gt; wrote:<br></div><blockquote class=3D"gmail_quote" style=3D"m=
argin:0px 0px 0px 0.8ex;padding-left:1ex;border-left-color:rgb(204,204,204)=
;border-left-width:1px;border-left-style:solid"><div>You can=E2=80=99t real=
ly =E2=80=9Cpull the cover=E2=80=9D on a Spit/GT6 diff, but it=E2=80=99s ea=
sy enough to drop the whole diff and much easier to examine on the bench. =
=C2=A0<br><div><br><div>On Aug 19, 2020, at 11:48 AM, vfracing--- via Fot &=
lt;<a href=3D"mailto:[email-masked]" target=3D"_blank">[email-masked]=
et</a>&gt; wrote:</div><br><div><div style=3D"font-family:arial,helvetica,s=
ans-serif;font-size:10pt"><div style=3D"font-family:arial,helvetica,sans-se=
rif;font-size:10pt">Pat;</div><div style=3D"font-family:arial,helvetica,san=
s-serif;font-size:10pt">If it&#39;s a stock set up from the factory, my fir=
st suspicion would be one of the differential carrier bearings.=C2=A0 That =
is, if you are certain it is from the differential. Wheel bearings can be c=
hecked by pitching the car side to side (no traffic, wide open parking lot)=
 to change the loading and hence the level of whine.</div><div style=3D"fon=
t-family:arial,helvetica,sans-serif;font-size:10pt"><br></div><div style=3D=
"font-family:arial,helvetica,sans-serif;font-size:10pt">But Bob is right: c=
heck it out NOW. The cover and perhaps the carrier should be pulled and a v=
isual inspection made.=C2=A0 Look for pitting on the bearings and gear teet=
h, check the pattern (before pulling the carrier) with Bluing Compound (or,=
 lacking that, bright colored paint)<br></div><div style=3D"font-family:ari=
al,helvetica,sans-serif;font-size:10pt"><br></div><div style=3D"font-family=
:arial,helvetica,sans-serif;font-size:10pt">Hopefully it&#39;s just a beari=
ng,</div><div style=3D"font-family:arial,helvetica,sans-serif;font-size:10p=
t"><br></div><div style=3D"font-family:arial,helvetica,sans-serif;font-size=
:10pt">Phil Gott</div><div style=3D"font-family:arial,helvetica,sans-serif;=
font-size:10pt"><br><br>-----Original Message-----<br>From: Robert Lang via=
 Fot &lt;<a href=3D"mailto:[email-masked]" target=3D"_blank">fot@autox.=
team.net</a>&gt;<br>To: FOT list &lt;<a href=3D"mailto:[email-masked]" =
target=3D"_blank">[email-masked]</a>&gt;; McKearn McKearn &lt;<a href=
=3D"mailto:[email-masked]" target=3D"_blank">[email-masked]</a>&gt;=
<br>Sent: Wed, Aug 19, 2020 11:39 am<br>Subject: Re: [Fot] Dif. noise<br><b=
r></div><div id=3D"gmail-m_-6730721812524005443gmail-m_1305250608599246961y=
iv9913073415"><div><div style=3D"font-family:Helvetica Neue,Helvetica,Arial=
,sans-serif;font-size:13px"><div></div>
        <div dir=3D"ltr">CHECK IT BEFORE YOU DESTROY IT. <br clear=3D"none"=
s because the gears aren&#39;t meshing properly. This will result in premat=
ure wear if you&#39;re lucky. If you are not lucky, you&#39;ll overheat the=
 diff and / or otherwise destroy it. Sometimes the noise can be from someth=
ing really dumb, like the ring gear bolts backing out and you find out when=
 one of the bolts wedge in the diff case with the resulting damage to every=
thing. Not that I&#39;ve done that or anything.<br clear=3D"none"></div><di=
v dir=3D"ltr"><br clear=3D"none"></div><div dir=3D"ltr">And keep in mind th=
at scrap steel prices are &quot;fairly low&quot;.</div><div dir=3D"ltr"><br=
 clear=3D"none"></div><div dir=3D"ltr">Regards,</div><div dir=3D"ltr">Bob L=
ang</div><div dir=3D"ltr"><br clear=3D"none"></div><div><br clear=3D"none">=
</div>
       =20
        </div><div id=3D"gmail-m_-6730721812524005443gmail-m_13052506085992=
46961yiv9913073415ydp256e4462yahoo_quoted_7989025310">
            <div style=3D"color:rgb(38,40,42);font-family:&quot;Helvetica N=
eue&quot;,Helvetica,Arial,sans-serif;font-size:13px">
               =20
                <div id=3D"gmail-m_-6730721812524005443gmail-m_130525060859=
9246961yiv9913073415yqt68010"><div>
                    On Wednesday, August 19, 2020, 10:59:08 AM EDT, McKearn=
 McKearn via Fot &lt;<a href=3D"mailto:[email-masked]" target=3D"_blank=
">[email-masked]</a>&gt; wrote:
                </div>
                <div><br clear=3D"none"></div>
                <div><br clear=3D"none"></div>
                <div><div id=3D"gmail-m_-6730721812524005443gmail-m_1305250=
608599246961yiv9913073415ydp256e4462yiv0720270631"><div dir=3D"ltr"><div>Hi=
 All.</div><div>=C2=A0 I am hearing some whining going on behind me when dr=
iving my 68 GT6..</div><div>=C2=A0It is only at neutral acceleration/decele=
ration and above 40 MPH ( There is no whine when accelerating or decelerati=
ng). =C2=A0 Stock 3.27:1 rear end.</div><div>=C2=A0 =C2=A0 =C2=A0 =C2=A0 =
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =
=C2=A0 =C2=A0 =C2=A0 =C2=A0=C2=A0 Any thoughts ?</div><div>=C2=A0 =C2=A0 =
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 Thanks Pat</div></div>
</div>_______________________________________________<br clear=3D"none"><a =
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rrer" shape=3D"rect">[email-masked]</a><br clear=3D"none"><br clear=3D"=
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From: Michael Porter via Fot <[email-masked]>
Date: Wed, 19 Aug 2020 12:03:10 -0600

> someone would humor me into not worrying about it ..
Unfortunately, diff noises are like gangrene.  They can only get worse 
without treatment.

I knew a guy in Michigan with an old Datsun pickup.  It had developed a 
serious whine in the rear end, but he remained oblivious and kept 
pushing it hard.  Eventually, the whine became so loud that it could be 
heard a half-mile away.

Then, one day, as he was driving away from my house, the rear end 
screaming, there was loud snap, the wheel and axle sailed away from the 
truck doing a very energetic whirling dervish dance in the air, bounced 
on the ground a couple of times and disappeared into a sorghum field.

And the noise stopped.

Cheers.

-- 

Michael Porter
Roswell, NM

Never let anyone drive you crazy when you know it's within walking distance....

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From: Scott Janzen via Fot <[email-masked]>
Date: Wed, 19 Aug 2020 14:10:38 -0400

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ouch.  Even in the late 1970s, $200 did not get you much.  Beaters, we =
called them.

On Aug 19, 2020, at 2:00 PM, John H. Hasty <[email-masked]> wrote:

Gee Scott, given your age, a $200 car would have been a fairly current =
model back then!

Sent from my iPhone

> On Aug 19, 2020, at 1:52 PM, Scott Janzen via Fot <[email-masked]> =
wrote:
>=20
> =EF=BB=BF well, there is the "ignore it" approach.  If you have a =
spare diff or three, no big deal - you could drive 'til it craps out, =
though at that point a rebuild is probably out of the question! =20
>=20
> On Aug 19, 2020, at 1:47 PM, McKearn McKearn <[email-masked] =
>=20
> You can=E2=80=99t really =E2=80=9Cpull the cover=E2=80=9D on a =
Spit/GT6 diff, but it=E2=80=99s easy enough to drop the whole diff and =
much easier to examine on the bench. =20
> If it's a stock set up from the factory, my first suspicion would be =
one of the differential carrier bearings.  That is, if you are certain =
it is from the differential. Wheel bearings can be checked by pitching =
the car side to side (no traffic, wide open parking lot) to change the =
loading and hence the level of whine.
> On Wednesday, August 19, 2020, 10:59:08 AM EDT, McKearn McKearn via =
>=20
>=20
> Hi All.
>   I am hearing some whining going on behind me when driving my 68 =
GT6..
>                                                            Any =
thoughts ?
> Donate: http://www.team.net/donate.html =
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Content-Transfer-Encoding: quoted-printable
	charset=utf-8

<html><head><meta http-equiv=3D"Content-Type" content=3D"text/html; =
charset=3Dutf-8"></head><body style=3D"word-wrap: break-word; =
-webkit-nbsp-mode: space; line-break: after-white-space;" class=3D"">ouch.=
 &nbsp;Even in the late 1970s, $200 did not get you much. &nbsp;Beaters, =
we called them.<br class=3D""><div><br class=3D""><div class=3D"">On Aug =
19, 2020, at 2:00 PM, John H. Hasty &lt;<a =
href=3D"mailto:[email-masked]" class=3D"">[email-masked]</a>&gt; =
wrote:</div><br class=3D"Apple-interchange-newline"><div class=3D"">

<meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3Dutf-8" =
class=3D"">

<div dir=3D"auto" class=3D"">
Gee Scott, given your age, a $200 car would have been a fairly current =
model back then!<br class=3D"">
<br class=3D"">
<div dir=3D"ltr" class=3D"">Sent from my iPhone</div>
<div dir=3D"ltr" class=3D""><br class=3D"">
<blockquote type=3D"cite" class=3D"">On Aug 19, 2020, at 1:52 PM, Scott =
Janzen via Fot &lt;<a href=3D"mailto:[email-masked]" =
class=3D"">[email-masked]</a>&gt; wrote:<br class=3D"">
<br class=3D"">
</blockquote>
</div>
<blockquote type=3D"cite" class=3D"">
<div dir=3D"ltr" class=3D"">=EF=BB=BF well, there is the "ignore it" =
approach. &nbsp;If you have a spare diff or three, no big deal - you =
could drive 'til it craps out, though at that point a rebuild is =
probably out of the question! &nbsp;
<div class=3D"">Back in the old days in Pittsburgh, when I got a $200 =
car every winter to drive through the ice, salt and potholes, there was =
no maintenance, as long as it started. &nbsp;Of course, that=E2=80=99s =
because I was preserving my sports car in the garage.<br class=3D"">
<div class=3D""><br class=3D"">
<div class=3D"">On Aug 19, 2020, at 1:47 PM, McKearn McKearn &lt;<a =
href=3D"mailto:[email-masked]" class=3D"">[email-masked]</a>&gt; =
wrote:</div>
<br class=3D"Apple-interchange-newline">
<div class=3D"">
<div dir=3D"ltr" class=3D"">
<div class=3D"">Thanks for the replies. (Some of you :)</div>
<div class=3D"">&nbsp;&nbsp; I was pretty much planning to pull it apart =
again but was hoping someone would humor me into not worrying about it =
..</div>
<div class=3D"">&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; =
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; =
&nbsp; &nbsp; P.J.</div>
<div class=3D""><br class=3D"">
</div>
<div class=3D"">&nbsp;&nbsp;</div>
</div>
<br class=3D"">
<div class=3D"gmail_quote">
<div class=3D"gmail_attr" dir=3D"ltr">On Wed, Aug 19, 2020 at 10:52 AM =
Scott Janzen &lt;<a href=3D"mailto:[email-masked]" =
class=3D"">[email-masked]</a>&gt; wrote:<br class=3D"">
</div>
<blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px =
0.8ex;padding-left:1ex;border-left-color:rgb(204,204,204);border-left-widt=
h:1px;border-left-style:solid">
<div style=3D"overflow-wrap: break-word;" class=3D"">You can=E2=80=99t =
really =E2=80=9Cpull the cover=E2=80=9D on a Spit/GT6 diff, but it=E2=80=99=
s easy enough to drop the whole diff and much easier to examine on the =
bench. &nbsp;<br class=3D"">
<div class=3D""><br class=3D"">
<div class=3D"">On Aug 19, 2020, at 11:48 AM, vfracing--- via Fot &lt;<a =
href=3D"mailto:[email-masked]" target=3D"_blank" =
class=3D"">[email-masked]</a>&gt; wrote:</div>
<br class=3D"">
<div class=3D"">
<div style=3D"font-family:arial,helvetica,sans-serif;font-size:10pt" =
class=3D"">
<div style=3D"font-family:arial,helvetica,sans-serif;font-size:10pt" =
class=3D"">Pat;</div>
<div style=3D"font-family:arial,helvetica,sans-serif;font-size:10pt" =
class=3D"">If it's a stock set up from the factory, my first suspicion =
would be one of the differential carrier bearings.&nbsp; That is, if you =
are certain it is from the differential. Wheel bearings
 can be checked by pitching the car side to side (no traffic, wide open =
parking lot) to change the loading and hence the level of whine.</div>
<div style=3D"font-family:arial,helvetica,sans-serif;font-size:10pt" =
class=3D""><br class=3D"">
</div>
<div style=3D"font-family:arial,helvetica,sans-serif;font-size:10pt" =
class=3D"">But Bob is right: check it out NOW. The cover and perhaps the =
carrier should be pulled and a visual inspection made.&nbsp; Look for =
pitting on the bearings and gear teeth, check the pattern
 (before pulling the carrier) with Bluing Compound (or, lacking that, =
bright colored paint)<br class=3D"">
</div>
<div style=3D"font-family:arial,helvetica,sans-serif;font-size:10pt" =
class=3D""><br class=3D"">
</div>
<div style=3D"font-family:arial,helvetica,sans-serif;font-size:10pt" =
class=3D"">Hopefully it's just a bearing,</div>
<div style=3D"font-family:arial,helvetica,sans-serif;font-size:10pt" =
class=3D""><br class=3D"">
</div>
<div style=3D"font-family:arial,helvetica,sans-serif;font-size:10pt" =
class=3D"">Phil Gott</div>
<div style=3D"font-family:arial,helvetica,sans-serif;font-size:10pt" =
class=3D""><br class=3D"">
<br class=3D"">
-----Original Message-----<br class=3D"">
From: Robert Lang via Fot &lt;<a href=3D"mailto:[email-masked]" =
target=3D"_blank" class=3D"">[email-masked]</a>&gt;<br class=3D"">
To: FOT list &lt;<a href=3D"mailto:[email-masked]" target=3D"_blank" =
class=3D"">[email-masked]</a>&gt;; McKearn McKearn &lt;<a =
href=3D"mailto:[email-masked]" target=3D"_blank" =
class=3D"">[email-masked]</a>&gt;<br class=3D"">
Sent: Wed, Aug 19, 2020 11:39 am<br class=3D"">
Subject: Re: [Fot] Dif. noise<br class=3D"">
<br class=3D"">
</div>
<div id=3D"gmail-m_1305250608599246961yiv9913073415" class=3D"">
<div class=3D"">
<div style=3D"font-family:Helvetica =
Neue,Helvetica,Arial,sans-serif;font-size:13px" class=3D"">
<div class=3D""></div>
<div dir=3D"ltr" class=3D"">CHECK IT BEFORE YOU DESTROY IT. <br =
clear=3D"none" class=3D"">
</div>
<div dir=3D"ltr" class=3D""><br clear=3D"none" class=3D"">
</div>
<div dir=3D"ltr" class=3D"">Whining is because the gears aren't meshing =
properly. This will result in premature wear if you're lucky. If you are =
not lucky, you'll overheat the diff and / or otherwise destroy it. =
Sometimes the noise can be from something really
 dumb, like the ring gear bolts backing out and you find out when one of =
the bolts wedge in the diff case with the resulting damage to =
everything. Not that I've done that or anything.<br clear=3D"none" =
class=3D"">
</div>
<div dir=3D"ltr" class=3D""><br clear=3D"none" class=3D"">
</div>
<div dir=3D"ltr" class=3D"">And keep in mind that scrap steel prices are =
"fairly low".</div>
<div dir=3D"ltr" class=3D""><br clear=3D"none" class=3D"">
</div>
<div dir=3D"ltr" class=3D"">Regards,</div>
<div dir=3D"ltr" class=3D"">Bob Lang</div>
<div dir=3D"ltr" class=3D""><br clear=3D"none" class=3D"">
</div>
<div class=3D""><br clear=3D"none" class=3D"">
</div>
</div>
<div =
id=3D"gmail-m_1305250608599246961yiv9913073415ydp256e4462yahoo_quoted_7989=
025310" class=3D"">
<div style=3D"color:rgb(38,40,42);font-family:&quot;Helvetica =
Neue&quot;,Helvetica,Arial,sans-serif;font-size:13px" class=3D"">
<div id=3D"gmail-m_1305250608599246961yiv9913073415yqt68010" class=3D"">
<div class=3D"">On Wednesday, August 19, 2020, 10:59:08 AM EDT, McKearn =
McKearn via Fot &lt;<a href=3D"mailto:[email-masked]" =
target=3D"_blank" class=3D"">[email-masked]</a>&gt; wrote:
</div>
<div class=3D""><br clear=3D"none" class=3D"">
</div>
<div class=3D""><br clear=3D"none" class=3D"">
</div>
<div class=3D"">
<div =
id=3D"gmail-m_1305250608599246961yiv9913073415ydp256e4462yiv0720270631" =
class=3D"">
<div dir=3D"ltr" class=3D"">
<div class=3D"">Hi All.</div>
<div class=3D"">&nbsp; I am hearing some whining going on behind me when =
driving my 68 GT6..</div>
<div class=3D"">&nbsp;It is only at neutral acceleration/deceleration =
and above 40 MPH ( There is no whine when accelerating or decelerating). =
&nbsp; Stock 3.27:1 rear end.</div>
<div class=3D"">&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; =
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; =
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; =
&nbsp;&nbsp; Any thoughts ?</div>
<div class=3D"">&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; =
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Thanks =
Pat</div>
</div>
</div>
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---

From: Chris Marx via Fot <[email-masked]>
Date: Thu, 20 Aug 2020 19:45:50 +0200

This is a multipart message in MIME format.

--===============8138746506349513726==
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Diffs starts to whine when nobody is taking care of.

This sad item is telling you =E2=80=9CI want adjustment=E2=80=9D

=20

Cheers

Chris

=20

=20

Von: Fot <[email-masked]> Im Auftrag von McKearn McKearn via =
Fot
Gesendet: Mittwoch, 19. August 2020 17:00
An: FOT list <[email-masked]>
Betreff: [Fot] Dif. noise

=20

Hi All.

                                                           Any thoughts =
?

                                  Thanks Pat

------=_NextPart_000_0047_01D6772A.821DC850
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</o:shapelayout></xml><![endif]--></head><body lang=3DEN-US =
link=3D"#0563C1" vlink=3D"#954F72"><div class=3DWordSection1><p =
class=3DMsoNormal>Diffs starts to whine when nobody is taking care =
of.<o:p></o:p></p><p class=3DMsoNormal>This sad item is telling you =
=E2=80=9CI want adjustment=E2=80=9D<o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal>Cheers<o:p></o:p></p><p =
class=3DMsoNormal>Chris<o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><div =
style=3D'border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm =
0cm 0cm'><p class=3DMsoNormal><b><span lang=3DDE>Von:</span></b><span =
lang=3DDE> Fot &lt;[email-masked]&gt; <b>Im Auftrag von =
</b>McKearn McKearn via Fot<br><b>Gesendet:</b> Mittwoch, 19. August =
2020 17:00<br><b>An:</b> FOT list =
&lt;[email-masked]&gt;<br><b>Betreff:</b> [Fot] Dif. =
noise<o:p></o:p></span></p></div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><div><div><p class=3DMsoNormal>Hi =
All.<o:p></o:p></p></div><div><p class=3DMsoNormal>&nbsp; I am hearing =
some whining going on behind me when driving my 68 =
GT6..<o:p></o:p></p></div><div><p class=3DMsoNormal>&nbsp;It is only at =
neutral acceleration/deceleration and above 40 MPH ( There is no whine =
when accelerating or decelerating). &nbsp; Stock 3.27:1 rear =
end.<o:p></o:p></p></div><div><p class=3DMsoNormal>&nbsp; &nbsp; &nbsp; =
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; =
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; =
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp; Any thoughts =
?<o:p></o:p></p></div><div><p class=3DMsoNormal>&nbsp; &nbsp; &nbsp; =
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; =
&nbsp; &nbsp; &nbsp; &nbsp; Thanks =
Pat<o:p></o:p></p></div></div></div></body></html>
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