Re: [Healeys] Rear axle ratios

To:	Jonathan Einhorn <einhornlawoffice@gmail.com>
Subject:	Re: [Healeys] Rear axle ratios
From:	Harold Manifold <manifold@telus.net>
Date:	Mon, 4 Nov 2024 09:04:21 -0800
Cc:	healey list <healeys@autox.team.net>
Delivered-to:	mharc@autox.team.net
Delivered-to:	healeys@autox.team.net
References:	<CADqHe-1ZKYJ-L1ci=7h3X=XNtf50g0NVfU0zmX65vD0AKx36VA@mail.gmail.com>
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Jonathan,

I wondered the same thing myself and created this table when restoring my
car.

Overdrive Ratio        0.82        0.78        0.82        0.78
0.82
0.78
Rear Axle Ratio        4.10        4.10        3.91        3.91
3.55
3.55
Final Ratio        3.37        3.19        3.21        3.04        2.91
2.76
Engine RPM @ 60 MPH      2,624      2,484      2,502      2,368      2,269
2,148
Just to further muddy the water there are two OD ratios available in
addition to the three rear axle ratios. I have the 0.78 / 3.55 combination
and my Healey happily cruises at 60 in OD.

Harold

On Mon, Nov 4, 2024 at 8:35=E2=80=AFAM Jonathan Einhorn <einhornlawoffice@g=
mail.com>
wrote:

> Can someone remind me of the various rear axle ratios available for the
> 3000 and the benefits of each?
>
> Thanks
> jon
>
> --
> Jonathan J. Einhorn, Esq.
> Attorney & Counselor at Law
> 129 Whitney Avenue
> New Haven, CT. 06510
> tel: 203-777-3777
> einhornlawoffice@gmail.com
> fax: 203-782-1721
> cell: 203-623-7373
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<div dir=3D"ltr">Jonathan,<div><br></div><div>I wondered the same thing mys=
elf and created this table when restoring my car.</div><div><br></div><div>=
<table border=3D"0" cellpadding=3D"0" cellspacing=3D"0" width=3D"535" style=
=3D"border-collapse:collapse;width:401pt">

 <colgroup><col width=3D"151" style=3D"width:113pt">
 <col width=3D"64" span=3D"6" style=3D"width:48pt">
 </colgroup><tbody><tr height=3D"17" style=3D"height:12.75pt">
  <td height=3D"17" class=3D"gmail-xl24" width=3D"151" style=3D"height:12.7=
5pt;width:113pt;border:0.5pt solid windowtext;padding-top:1px;padding-right=
:1px;padding-left:1px;color:windowtext;font-size:10pt;font-family:Arial;ver=
tical-align:bottom">Overdrive
  Ratio</td>
  <td class=3D"gmail-xl25" width=3D"64" style=3D"border-left:none;width:48p=
t;border-top:0.5pt solid windowtext;border-right:0.5pt solid windowtext;bor=
der-bottom:0.5pt solid windowtext;padding-top:1px;padding-right:1px;padding=
-left:1px;color:windowtext;font-size:10pt;font-family:Arial;vertical-align:=
bottom">=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 0.82
  </td>
  <td class=3D"gmail-xl25" width=3D"64" style=3D"border-left:none;width:48p=
t;border-top:0.5pt solid windowtext;border-right:0.5pt solid windowtext;bor=
der-bottom:0.5pt solid windowtext;padding-top:1px;padding-right:1px;padding=
-left:1px;color:windowtext;font-size:10pt;font-family:Arial;vertical-align:=
bottom">=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 0.78
  </td>
  <td class=3D"gmail-xl25" width=3D"64" style=3D"border-left:none;width:48p=
t;border-top:0.5pt solid windowtext;border-right:0.5pt solid windowtext;bor=
der-bottom:0.5pt solid windowtext;padding-top:1px;padding-right:1px;padding=
-left:1px;color:windowtext;font-size:10pt;font-family:Arial;vertical-align:=
bottom">=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 0.82
  </td>
  <td class=3D"gmail-xl25" width=3D"64" style=3D"border-left:none;width:48p=
t;border-top:0.5pt solid windowtext;border-right:0.5pt solid windowtext;bor=
der-bottom:0.5pt solid windowtext;padding-top:1px;padding-right:1px;padding=
-left:1px;color:windowtext;font-size:10pt;font-family:Arial;vertical-align:=
bottom">=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 0.78
  </td>
  <td class=3D"gmail-xl25" width=3D"64" style=3D"border-left:none;width:48p=
t;border-top:0.5pt solid windowtext;border-right:0.5pt solid windowtext;bor=
der-bottom:0.5pt solid windowtext;padding-top:1px;padding-right:1px;padding=
-left:1px;color:windowtext;font-size:10pt;font-family:Arial;vertical-align:=
bottom">=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 0.82
  </td>
  <td class=3D"gmail-xl25" width=3D"64" style=3D"border-left:none;width:48p=
t;border-top:0.5pt solid windowtext;border-right:0.5pt solid windowtext;bor=
der-bottom:0.5pt solid windowtext;padding-top:1px;padding-right:1px;padding=
-left:1px;color:windowtext;font-size:10pt;font-family:Arial;vertical-align:=
bottom">=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 0.78
  </td>
 </tr>
 <tr height=3D"17" style=3D"height:12.75pt">
  <td height=3D"17" class=3D"gmail-xl24" style=3D"height:12.75pt;border-top=
:none;border-right:0.5pt solid windowtext;border-bottom:0.5pt solid windowt=
ext;border-left:0.5pt solid windowtext;padding-top:1px;padding-right:1px;pa=
dding-left:1px;color:windowtext;font-size:10pt;font-family:Arial;vertical-a=
lign:bottom">Rear Axle
  Ratio</td>
  <td class=3D"gmail-xl25" style=3D"border-top:none;border-left:none;border=
-right:0.5pt solid windowtext;border-bottom:0.5pt solid windowtext;padding-=
top:1px;padding-right:1px;padding-left:1px;color:windowtext;font-size:10pt;=
font-family:Arial;vertical-align:bottom">=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0 4.10 </td>
  <td class=3D"gmail-xl25" style=3D"border-top:none;border-left:none;border=
-right:0.5pt solid windowtext;border-bottom:0.5pt solid windowtext;padding-=
top:1px;padding-right:1px;padding-left:1px;color:windowtext;font-size:10pt;=
font-family:Arial;vertical-align:bottom">=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0 4.10 </td>
  <td class=3D"gmail-xl25" style=3D"border-top:none;border-left:none;border=
-right:0.5pt solid windowtext;border-bottom:0.5pt solid windowtext;padding-=
top:1px;padding-right:1px;padding-left:1px;color:windowtext;font-size:10pt;=
font-family:Arial;vertical-align:bottom">=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0 3.91 </td>
  <td class=3D"gmail-xl25" style=3D"border-top:none;border-left:none;border=
-right:0.5pt solid windowtext;border-bottom:0.5pt solid windowtext;padding-=
top:1px;padding-right:1px;padding-left:1px;color:windowtext;font-size:10pt;=
font-family:Arial;vertical-align:bottom">=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0 3.91 </td>
  <td class=3D"gmail-xl25" style=3D"border-top:none;border-left:none;border=
-right:0.5pt solid windowtext;border-bottom:0.5pt solid windowtext;padding-=
top:1px;padding-right:1px;padding-left:1px;color:windowtext;font-size:10pt;=
font-family:Arial;vertical-align:bottom">=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0 3.55 </td>
  <td class=3D"gmail-xl25" style=3D"border-top:none;border-left:none;border=
-right:0.5pt solid windowtext;border-bottom:0.5pt solid windowtext;padding-=
top:1px;padding-right:1px;padding-left:1px;color:windowtext;font-size:10pt;=
font-family:Arial;vertical-align:bottom">=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0 3.55 </td>
 </tr>
 <tr height=3D"17" style=3D"height:12.75pt">
  <td height=3D"17" class=3D"gmail-xl24" style=3D"height:12.75pt;border-top=
:none;border-right:0.5pt solid windowtext;border-bottom:0.5pt solid windowt=
ext;border-left:0.5pt solid windowtext;padding-top:1px;padding-right:1px;pa=
dding-left:1px;color:windowtext;font-size:10pt;font-family:Arial;vertical-a=
lign:bottom">Final Ratio</td>
  <td class=3D"gmail-xl25" style=3D"border-top:none;border-left:none;border=
-right:0.5pt solid windowtext;border-bottom:0.5pt solid windowtext;padding-=
top:1px;padding-right:1px;padding-left:1px;color:windowtext;font-size:10pt;=
font-family:Arial;vertical-align:bottom">=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0 3.37 </td>
  <td class=3D"gmail-xl25" style=3D"border-top:none;border-left:none;border=
-right:0.5pt solid windowtext;border-bottom:0.5pt solid windowtext;padding-=
top:1px;padding-right:1px;padding-left:1px;color:windowtext;font-size:10pt;=
font-family:Arial;vertical-align:bottom">=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0 3.19 </td>
  <td class=3D"gmail-xl25" style=3D"border-top:none;border-left:none;border=
-right:0.5pt solid windowtext;border-bottom:0.5pt solid windowtext;padding-=
top:1px;padding-right:1px;padding-left:1px;color:windowtext;font-size:10pt;=
font-family:Arial;vertical-align:bottom">=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0 3.21 </td>
  <td class=3D"gmail-xl25" style=3D"border-top:none;border-left:none;border=
-right:0.5pt solid windowtext;border-bottom:0.5pt solid windowtext;padding-=
top:1px;padding-right:1px;padding-left:1px;color:windowtext;font-size:10pt;=
font-family:Arial;vertical-align:bottom">=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0 3.04 </td>
  <td class=3D"gmail-xl25" style=3D"border-top:none;border-left:none;border=
-right:0.5pt solid windowtext;border-bottom:0.5pt solid windowtext;padding-=
top:1px;padding-right:1px;padding-left:1px;color:windowtext;font-size:10pt;=
font-family:Arial;vertical-align:bottom">=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0 2.91 </td>
  <td class=3D"gmail-xl25" style=3D"border-top:none;border-left:none;border=
-right:0.5pt solid windowtext;border-bottom:0.5pt solid windowtext;padding-=
top:1px;padding-right:1px;padding-left:1px;color:windowtext;font-size:10pt;=
font-family:Arial;vertical-align:bottom">=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0 2.76 </td>
 </tr>
 <tr height=3D"17" style=3D"height:12.75pt">
  <td height=3D"17" class=3D"gmail-xl24" style=3D"height:12.75pt;border-top=
:none;border-right:0.5pt solid windowtext;border-bottom:0.5pt solid windowt=
ext;border-left:0.5pt solid windowtext;padding-top:1px;padding-right:1px;pa=
dding-left:1px;color:windowtext;font-size:10pt;font-family:Arial;vertical-a=
lign:bottom">Engine RPM @
  60 MPH</td>
  <td class=3D"gmail-xl26" style=3D"border-top:none;border-left:none;border=
-right:0.5pt solid windowtext;border-bottom:0.5pt solid windowtext;padding-=
top:1px;padding-right:1px;padding-left:1px;color:windowtext;font-size:10pt;=
font-family:Arial;vertical-align:bottom">=C2=A0=C2=A0=C2=A0=C2=A0 2,624 </t=
d>
  <td class=3D"gmail-xl26" style=3D"border-top:none;border-left:none;border=
-right:0.5pt solid windowtext;border-bottom:0.5pt solid windowtext;padding-=
top:1px;padding-right:1px;padding-left:1px;color:windowtext;font-size:10pt;=
font-family:Arial;vertical-align:bottom">=C2=A0=C2=A0=C2=A0=C2=A0 2,484 </t=
d>
  <td class=3D"gmail-xl26" style=3D"border-top:none;border-left:none;border=
-right:0.5pt solid windowtext;border-bottom:0.5pt solid windowtext;padding-=
top:1px;padding-right:1px;padding-left:1px;color:windowtext;font-size:10pt;=
font-family:Arial;vertical-align:bottom">=C2=A0=C2=A0=C2=A0=C2=A0 2,502 </t=
d>
  <td class=3D"gmail-xl26" style=3D"border-top:none;border-left:none;border=
-right:0.5pt solid windowtext;border-bottom:0.5pt solid windowtext;padding-=
top:1px;padding-right:1px;padding-left:1px;color:windowtext;font-size:10pt;=
font-family:Arial;vertical-align:bottom">=C2=A0=C2=A0=C2=A0=C2=A0 2,368 </t=
d>
  <td class=3D"gmail-xl26" style=3D"border-top:none;border-left:none;border=
-right:0.5pt solid windowtext;border-bottom:0.5pt solid windowtext;padding-=
top:1px;padding-right:1px;padding-left:1px;color:windowtext;font-size:10pt;=
font-family:Arial;vertical-align:bottom">=C2=A0=C2=A0=C2=A0=C2=A0 2,269 </t=
d>
  <td class=3D"gmail-xl26" style=3D"border-top:none;border-left:none;border=
-right:0.5pt solid windowtext;border-bottom:0.5pt solid windowtext;padding-=
top:1px;padding-right:1px;padding-left:1px;color:windowtext;font-size:10pt;=
font-family:Arial;vertical-align:bottom">=C2=A0=C2=A0=C2=A0=C2=A0 2,148 </t=
d>
 </tr>

</tbody></table><br></div><div>Just to further muddy the water there are tw=
o OD ratios available in addition to the three rear axle ratios. I have the=
 0.78 / 3.55 combination and my Healey happily cruises=C2=A0at 60 in OD.</d=
iv><div><br></div><div>Harold</div></div><br><div class=3D"gmail_quote"><di=
v dir=3D"ltr" class=3D"gmail_attr">On Mon, Nov 4, 2024 at 8:35=E2=80=AFAM J=
onathan Einhorn &lt;<a href=3D"mailto:einhornlawoffice@gmail.com";>einhornla=
woffice@gmail.com</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);p=
adding-left:1ex"><div dir=3D"ltr">Can someone remind me of the various rear=
 axle ratios=C2=A0available for the 3000 and the benefits of each?=C2=A0<di=
v><br></div><div>Thanks</div><div>jon<br clear=3D"all"><div><br></div><span=
 class=3D"gmail_signature_prefix">-- </span><br><div dir=3D"ltr" class=3D"g=
mail_signature">Jonathan J. Einhorn, Esq.<br>Attorney &amp; Counselor at La=
w<br>129 Whitney Avenue<br>New Haven, CT. 06510<br>tel: 203-777-3777<br><a =
href=3D"mailto:einhornlawoffice@gmail.com"; target=3D"_blank">einhornlawoffi=
ce@gmail.com</a><br>fax: 203-782-1721<br>cell: 203-623-7373</div></div></di=
v>
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