Subject: [Fot] Triumph Ring & Pinion

From: Brian Dennis <[email-masked]>
Date: Tue, 21 Apr 2026 18:27:45 +0000 (UTC)

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Greetings,I'm looking for a 4:55 (or maybe 4:88?) ring & Pinion to fit the =
Spitfire differential case. I believe it is from a delivery van or somethin=
g but I do not remember. This is the one with the bigger diameter pinion sh=
aft.=C2=A0
Any information or assistance is appreciated.
Thank you,BrianPlymouth, MA
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<html><head></head><body><div class="yahoo-style-wrap" style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:16px;"><div dir="ltr" data-setdir="false">Greetings,</div><div dir="ltr" data-setdir="false">I'm looking for a 4:55 (or maybe 4:88?) ring &amp; Pinion to fit the Spitfire differential case. I believe it is from a delivery van or something but I do not remember. This is the one with the bigger diameter pinion shaft.&nbsp;</div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">Any information or assistance is appreciated.</div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">Thank you,</div><div dir="ltr" data-setdir="false">Brian</div><div dir="ltr" data-setdir="false">Plymouth, MA</div></div></body></html>
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_______________________________________________
[email-masked]

http://www.fot-racing.com

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

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From: "JS Performance Motoring, LLC" <[email-masked]>
Date: Tue, 21 Apr 2026 18:54:48 -0400

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Brian,
Spitbits lists them as available new.

Jason Sukey
JS Performance Motoring, LLC
440.984.7720
[email-masked]
www.jspmparts.com
https://www.facebook.com/JSPerformanceMotoring/

On Tue, Apr 21, 2026, 6:53=E2=80=AFPM Brian Dennis <[email-masked]> =
wrote:

> Greetings,
> I'm looking for a 4:55 (or maybe 4:88?) ring & Pinion to fit the Spitfire
> differential case. I believe it is from a delivery van or something but I
> do not remember. This is the one with the bigger diameter pinion shaft.
>
> Thank you,
> Brian
> Plymouth, MA
> Donate: http://www.team.net/donate.html
> 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"auto"><div><div>Brian,=C2=A0</div><div dir=3D"auto">Spitbits li=
sts them as available new.=C2=A0</div><div dir=3D"auto"><br></div><div dir=
=3D"auto"><br></div><div><br></div><div data-smartmail=3D"gmail_signature">=
<div dir=3D"ltr"><div><div dir=3D"ltr"><div><div dir=3D"ltr"><div dir=3D"lt=
r"><div dir=3D"ltr"><div>Jason Sukey</div><div><span></span><span></span>JS=
 Performance Motoring, LLC<br></div><div>440.984.7720</div><div><a href=3D"=
mailto:[email-masked]" target=3D"_blank">jason@jsperforman=
cemotoring.com</a><br></div><div><a href=3D"http://www.jspmparts.com" targe=
t=3D"_blank">www.jspmparts.com</a></div><div><a href=3D"https://www.faceboo=
k.com/JSPerformanceMotoring/" target=3D"_blank">https://www.facebook.com/JS=
PerformanceMotoring/</a><br></div></div></div></div></div></div></div></div=
></div><br><div class=3D"gmail_quote gmail_quote_container"><div dir=3D"ltr=
" class=3D"gmail_attr">On Tue, Apr 21, 2026, 6:53=E2=80=AFPM Brian Dennis &=
lt;<a href=3D"mailto:[email-masked]">[email-masked]</a>&gt; w=
rote:<br></div><blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex=
;border-left:1px #ccc solid;padding-left:1ex"><div><div style=3D"font-famil=
y:Helvetica Neue,Helvetica,Arial,sans-serif;font-size:16px"><div dir=3D"ltr=
">Greetings,</div><div dir=3D"ltr">I&#39;m looking for a 4:55 (or maybe 4:8=
8?) ring &amp; Pinion to fit the Spitfire differential case. I believe it i=
s from a delivery van or something but I do not remember. This is the one w=
ith the bigger diameter pinion shaft.=C2=A0</div><div dir=3D"ltr"><br></div=
><div dir=3D"ltr">Any information or assistance is appreciated.</div><div d=
ir=3D"ltr"><br></div><div dir=3D"ltr">Thank you,</div><div dir=3D"ltr">Bria=
n</div><div dir=3D"ltr">Plymouth, MA</div></div></div>_____________________=
__________________________<br>
<a href=3D"mailto:[email-masked]" target=3D"_blank" rel=3D"noreferrer">=
[email-masked]</a><br>
<br>
<a href=3D"http://www.fot-racing.com" rel=3D"noreferrer noreferrer" target=
=3D"_blank">http://www.fot-racing.com</a><br>
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errer" target=3D"_blank">http://www.team.net/donate.html</a><br>
Archive: <a href=3D"http://autox.team.net/archive" rel=3D"noreferrer norefe=
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_blank">http://autox.team.net/mailman/options/fot/jason@jsperformancemotori=
ng.com</a><br>
<br>
<br>
</blockquote></div></div></div>

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From: Mark Bradakis <[email-masked]>
Date: Tue, 21 Apr 2026 20:03:30 -0600

On 4/21/26 12:27 PM, Brian Dennis wrote:
> Greetings,
> I'm looking for a 4:55 (or maybe 4:88?) ring & Pinion to fit the 
> Spitfire differential case. I believe it is from a delivery van or 
> something but I do not remember. This is the one with the bigger 
> diameter pinion shaft.

I used to have a 4:55 set, but it got sold at auction back in 2005.  I 
lost my job at the U, got behind on my storage rental, and the contents 
were sold as a lot for like 300 bucks.  Not only the gearset, but a big 
TR Detroit locker, a Spitfire/GT6 Quaife unit, all my Weber airhorns, 
chokes and venturis, ( The box of brass bits with calibrated holes was 
home in my garage ) a Ford 710? 1600 short block from a Lotus Europa, a 
couple of big TR overdrive transmissions, a D type Spit overdrive, a 
Spitfire parts car, and a load of various body panels, electrical parts, 
and so on.

Sigh.

mjb.

---

From: rocky spitfire4.com <[email-masked]>
Date: Wed, 22 Apr 2026 13:35:20 +0000

Last time I found a 4:55 for my Spitfire (back in the early oughts sometime) it came from Canley Classics in the UK. 

After breaking several earlier 4:55s -- the last one I tore off EVERY tooth! -- I had that one from Canley shotpeened before putting it in the car. It lasted. 

I've heard of 4:88s but never seen a live one in 50 years of racinng a Spitfire. I think it's a mythical animal. 🤣

--Rocky Entriken

-----Original Message-----
From: Fot <[email-masked]> On Behalf Of Mark Bradakis
Sent: Tuesday, April 21, 2026 9:04 PM
To: [email-masked]
Subject: Re: [Fot] Triumph Ring & Pinion

> something but I do not remember. This is the one with the bigger 

I used to have a 4:55 set, but it got sold at auction back in 2005.  I lost my job at the U, got behind on my storage rental, and the contents were sold as a lot for like 300 bucks.  Not only the gearset, but a big TR Detroit locker, a Spitfire/GT6 Quaife unit, all my Weber airhorns, chokes and venturis, ( The box of brass bits with calibrated holes was home in my garage ) a Ford 710? 1600 short block from a Lotus Europa, a couple of big TR overdrive transmissions, a D type Spit overdrive, a Spitfire parts car, and a load of various body panels, electrical parts, and so on.

Sigh.

mjb.

Donate: http://www.team.net/donate.html
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Unsubscribe/Manage: http://autox.team.net/mailman/options/fot/[email-masked]

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From: ralph hansen <[email-masked]>
Date: Thu, 23 Apr 2026 14:10:34 +0000 (UTC)

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 4:88's were very real back n the day - a fellow competitor had one in his =
car, a damn rocket out of the hole and at Blackhawk Farms (tight and twisty=
) he was truly quick (esp against my 4:11)

    On Thursday, April 23, 2026 at 01:44:05 AM CDT, rocky spitfire4.com <ro=
[email-masked]> wrote: =20
=20
 Last time I found a 4:55 for my Spitfire (back in the early oughts sometim=
e) it came from Canley Classics in the UK.=20

After breaking several earlier 4:55s -- the last one I tore off EVERY tooth=
! -- I had that one from Canley shotpeened before putting it in the car. It=
 lasted.=20

I've heard of 4:88s but never seen a live one in 50 years of racinng a Spit=
fire. I think it's a mythical animal. =F0=9F=A4=A3

--Rocky Entriken

-----Original Message-----
From: Fot <[email-masked]> On Behalf Of Mark Bradakis
Sent: Tuesday, April 21, 2026 9:04 PM
To: [email-masked]
Subject: Re: [Fot] Triumph Ring & Pinion

On 4/21/26 12:27 PM, Brian Dennis wrote:
> Greetings,
> I'm looking for a 4:55 (or maybe 4:88?) ring & Pinion to fit the=20
> Spitfire differential case. I believe it is from a delivery van or=20
> something but I do not remember. This is the one with the bigger=20
> diameter pinion shaft.

I used to have a 4:55 set, but it got sold at auction back in 2005.=C2=A0 I=
 lost my job at the U, got behind on my storage rental, and the contents we=
re sold as a lot for like 300 bucks.=C2=A0 Not only the gearset, but a big =
TR Detroit locker, a Spitfire/GT6 Quaife unit, all my Weber airhorns, choke=
s and venturis, ( The box of brass bits with calibrated holes was home in m=
y garage ) a Ford 710? 1600 short block from a Lotus Europa, a couple of bi=
g TR overdrive transmissions, a D type Spit overdrive, a Spitfire parts car=
, and a load of various body panels, electrical parts, and so on.

Sigh.

mjb.

e4.com

com

 =20
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<html><head></head><body><div class=3D"ydp47988476yahoo-style-wrap" style=
=3D"font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:13px=
;"><div></div>
        <div dir=3D"ltr" data-setdir=3D"false">4:88's were very real back n=
 the day - a fellow competitor had one in his car, a damn rocket out of the=
 hole and at Blackhawk Farms (tight and twisty) he was truly quick (esp aga=
inst my 4:11)</div><div dir=3D"ltr" data-setdir=3D"false"><br></div><div di=
r=3D"ltr" data-setdir=3D"false"><br></div><div dir=3D"ltr" data-setdir=3D"f=
alse"><br></div><div dir=3D"ltr" data-setdir=3D"false"><br></div><div dir=
=3D"ltr" data-setdir=3D"false"><br></div><div dir=3D"ltr" data-setdir=3D"fa=
lse"><br></div><div><br></div>
       =20
        </div><div id=3D"ydp3b11b05eyahoo_quoted_7850839515" class=3D"ydp3b=
11b05eyahoo_quoted">
            <div style=3D"font-family:'Helvetica Neue', Helvetica, Arial, s=
ans-serif;font-size:13px;">
               =20
                <div>
                    On Thursday, April 23, 2026 at 01:44:05 AM CDT, rocky s=
pitfire4.com &lt;[email-masked]&gt; wrote:
                </div>
                <div><br></div>
                <div><br></div>
                <div><div dir=3D"ltr">Last time I found a 4:55 for my Spitf=
ire (back in the early oughts sometime) it came from Canley Classics in the=
 UK. <br></div><div dir=3D"ltr"><br></div><div dir=3D"ltr">After breaking s=
everal earlier 4:55s -- the last one I tore off EVERY tooth! -- I had that =
one from Canley shotpeened before putting it in the car. It lasted. <br></d=
iv><div dir=3D"ltr"><br></div><div dir=3D"ltr">I've heard of 4:88s but neve=
r seen a live one in 50 years of racinng a Spitfire. I think it's a mythica=
l animal. =F0=9F=A4=A3<br></div><div dir=3D"ltr"><br></div><div dir=3D"ltr"=
>--Rocky Entriken<br></div><div dir=3D"ltr"><br></div><div dir=3D"ltr">----=
-Original Message-----<br></div><div dir=3D"ltr">From: Fot &lt;<a href=3D"m=
ailto:[email-masked]" rel=3D"nofollow" target=3D"_blank">fot-bo=
[email-masked]</a>&gt; On Behalf Of Mark Bradakis<br></div><div dir=
=3D"ltr">Sent: Tuesday, April 21, 2026 9:04 PM<br></div><div dir=3D"ltr">To=
: <a href=3D"mailto:[email-masked]" rel=3D"nofollow" target=3D"_blank">=
[email-masked]</a><br></div><div dir=3D"ltr">Subject: Re: [Fot] Triumph=
 Ring &amp; Pinion<br></div><div dir=3D"ltr"><br></div><div dir=3D"ltr">On =
4/21/26 12:27 PM, Brian Dennis wrote:<br></div><div dir=3D"ltr">&gt; Greeti=
ngs,<br></div><div dir=3D"ltr">&gt; I'm looking for a 4:55 (or maybe 4:88?)=
 ring &amp; Pinion to fit the <br></div><div dir=3D"ltr">&gt; Spitfire diff=
erential case. I believe it is from a delivery van or <br></div><div dir=3D=
"ltr">&gt; something but I do not remember. This is the one with the bigger=
 <br></div><div dir=3D"ltr">&gt; diameter pinion shaft.<br></div><div dir=
=3D"ltr"><br></div><div dir=3D"ltr">I used to have a 4:55 set, but it got s=
old at auction back in 2005.&nbsp; I lost my job at the U, got behind on my=
 storage rental, and the contents were sold as a lot for like 300 bucks.&nb=
sp; Not only the gearset, but a big TR Detroit locker, a Spitfire/GT6 Quaif=
e unit, all my Weber airhorns, chokes and venturis, ( The box of brass bits=
 with calibrated holes was home in my garage ) a Ford 710? 1600 short block=
 from a Lotus Europa, a couple of big TR overdrive transmissions, a D type =
Spit overdrive, a Spitfire parts car, and a load of various body panels, el=
ectrical parts, and so on.<br></div><div dir=3D"ltr"><br></div><div dir=3D"=
ltr">Sigh.<br></div><div dir=3D"ltr"><br></div><div dir=3D"ltr">mjb.<br></d=
iv><div dir=3D"ltr"><br></div><div dir=3D"ltr">____________________________=
___________________<br></div><div dir=3D"ltr"><a href=3D"mailto:[email-masked]=
eam.net" rel=3D"nofollow" target=3D"_blank">[email-masked]</a><br></div=
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ng.com" rel=3D"nofollow" target=3D"_blank">http://www.fot-racing.com</a><br=
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