<div style="color:black;font: 12pt Arial, Helvetica, sans-serif;">
<div> <font size="3">Not off hand but it is better than what you get with the A-type. What I recall is that 3000 RPM will give you 75 MPH with an A-type and 78 with a J-type.</font></div>
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<div><font size="3">Yes, I did it with some angle iron and a stack of rubber washers. I have since switched to a newer frame from a '73 so I am back to factory-fit. A local club member put a J-type in his '71 but I haven't seen how he did it.</font><br>
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<div style="clear:both"><font size="4">Dave </font><br>
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<div style="font-family:arial,helvetica;font-size:10pt;color:black"><font size="2">-----Original Message-----<br>
From: David P <frogeye@porterscustom.com><br>
To: DAVID MASSEY <dave1massey@cs.com>; triumphs@autox.team.net <triumphs@autox.team.net><br>
Sent: Tue, Nov 30, 2021 8:40 am<br>
Subject: Re: [TR] OD gear box question<br>
<br>
<div id="yiv4030526766">
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<div>Yes, J type for a 71' TR6 Yep, some angle iron made it work..
No drilling needed... a MIG yes.. LOL Dave, do you know the
reduction percentage of the J type? dp<br clear="none">
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<div id="yiv4030526766yqt41292" class="yiv4030526766yqt6272277377">
<div class="yiv4030526766moz-cite-prefix">On 11/30/2021 7:34 AM, DAVID MASSEY
wrote:<br clear="none">
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<blockquote type="cite">
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<div id="yiv4030526766yqt80275" class="yiv4030526766yqt6272277377">
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<div style="color:black;font:12pt Arial, Helvetica, sans-serif;">
<div> <font size="3">Did you get the A-type or J-type
overdrive. They switched in 1973 from the A to the J-type
and modified the frame to suit. The J-type is not a direct
fit. It can be done but it is an unorthodox mounting. IOW:
roll your own.</font><br clear="none">
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<div style="clear:both;"><font size="4">Dave </font><br clear="none">
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<div style="font-family:arial, helvetica;font-size:10pt;color:black;"><font size="2">-----Original Message-----<br clear="none">
From: David P <a rel="nofollow noopener noreferrer" shape="rect" ymailto="mailto:frogeye@porterscustom.com" target="_blank" href="mailto:frogeye@porterscustom.com" class="yiv4030526766moz-txt-link-rfc2396E"><frogeye@porterscustom.com></a><br clear="none">
To: Triumphs (<a rel="nofollow noopener noreferrer" shape="rect" ymailto="mailto:triumphs@autox.team.net" target="_blank" href="mailto:triumphs@autox.team.net" class="yiv4030526766moz-txt-link-abbreviated">triumphs@autox.team.net</a>)
<a rel="nofollow noopener noreferrer" shape="rect" ymailto="mailto:triumphs@autox.team.net" target="_blank" href="mailto:triumphs@autox.team.net" class="yiv4030526766moz-txt-link-rfc2396E"><triumphs@autox.team.net></a><br clear="none">
Sent: Tue, Nov 30, 2021 8:13 am<br clear="none">
Subject: [TR] OD gear box question<br clear="none">
<br clear="none">
</font>
<div dir="ltr">Owners, I acquired a Factory OD gear box
for my '71 and discovered <br clear="none">
</div>
<div dir="ltr">that the transmission mounts on my chassis do
not correspond to the <br clear="none">
</div>
<div dir="ltr">mount on the box... So, were the cars ordered
with OD modified at the <br clear="none">
</div>
<div dir="ltr">chassis mount location?<br clear="none">
</div>
<div dir="ltr"><br clear="none">
</div>
<div dir="ltr"> With the OD, removing the driveshaft
becomes a bit more <br clear="none">
</div>
<div dir="ltr">problematic...due to moving the mount
rearward nearly 6 inches. DaveP<br clear="none">
</div>
<div dir="ltr"><br clear="none">
</div>
<div dir="ltr">-- <br clear="none">
</div>
<div dir="ltr">Porter Custom Bicycles 2909 Arno St. NE
Albuquerque, NM. 505-352-1378 My World go here:
<a rel="nofollow noopener noreferrer" shape="rect" target="_blank" href="http://www.porterbikes.com/" class="yiv4030526766moz-txt-link-abbreviated">WWW.PORTERBIKES.COM/</a><br clear="none">
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<pre class="yiv4030526766moz-signature">--
Porter Custom Bicycles 2909 Arno St. NE Albuquerque, NM. 505-352-1378 My World go here: <a rel="nofollow noopener noreferrer" shape="rect" target="_blank" href="http://www.porterbikes.com/" class="yiv4030526766moz-txt-link-abbreviated">WWW.PORTERBIKES.COM/</a></pre>
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