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I only cut the left side factory mount off as it directly hit the
($200+) solenoid and used the factory angled rubber bush cross mount on
angle and square iron bits. So, the rubber bits can be replaced, but the
cross piece has to be partially removed to remove the drive shaft. A
small inconvenience for the next luck owner..  A types were 22% or
28%.. I'm thinking the J is 25% ? With the newly added 3.45:1 rear gear
set 70MPH is showing 2600RPM. Nice for our NM long distances.... Factory
is saying 90wt gear oil... what is your recommendation for oil? Seems
heavy for cold weather temps. DP
On 11/30/2021 7:59 AM, DAVID MASSEY wrote:
> 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.
>
> 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.
>
> Dave
>
>
>
> -----Original Message-----
> From: David P <frogeye@porterscustom.com>
> To: DAVID MASSEY <dave1massey@cs.com>; triumphs@autox.team.net
> <triumphs@autox.team.net>
> Sent: Tue, Nov 30, 2021 8:40 am
> Subject: Re: [TR] OD gear box question
>
> Yes, J type for a 71' TR6Â Â Â 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
> On 11/30/2021 7:34 AM, DAVID MASSEY wrote:
> 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.
>
> Dave
>
>
>
> -----Original Message-----
> From: David P <frogeye@porterscustom.com>
> To: Triumphs (triumphs@autox.team.net
> Sent: Tue, Nov 30, 2021 8:13 am
> Subject: [TR] OD gear box question
>
> Owners,  I acquired a Factory OD gear box for my '71 and discovered
> that the transmission mounts on my chassis do not correspond to the
> mount on the box... So, were the cars ordered with OD modified at the
> chassis mount location?
>
> Â With the OD, removing the driveshaft becomes a bit more
> problematic...due to moving the mount rearward nearly 6 inches. DaveP
>
> --
> Porter Custom Bicycles 2909 Arno St. NE Albuquerque, NM. 505-352-1378
> My World go here: WWW.PORTERBIKES.COM/ <http://www.porterbikes.com/>
>
>
> Donate: http://www.team.net/donate.html <http://www.team.net/donate.html>
> Archive: http://www.team.net/pipermail/triumphs
> <http://www.team.net/pipermail/triumphs> http://www.team.net/archive
> <http://www.team.net/archive>
>
> Unsubscribe/Manage:
> http://autox.team.net/mailman/options/triumphs/dave1massey@cs.com
> <http://autox.team.net/mailman/options/triumphs/dave1massey@cs.com>
> --
> Porter Custom Bicycles 2909 Arno St. NE Albuquerque, NM. 505-352-1378 My
> World go here:WWW.PORTERBIKES.COM/ <http://www.porterbikes.com/>
--
Porter Custom Bicycles 2909 Arno St. NE Albuquerque, NM. 505-352-1378 My World
go here:WWW.PORTERBIKES.COM/
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<p>I only cut the left side factory mount off as it directly hit the
($200+) solenoid and used the factory angled rubber bush cross
mount on angle and square iron bits. So, the rubber bits can be
replaced, but the cross piece has to be partially removed to
remove the drive shaft. A small inconvenience for the next luck
owner..  A types were 22% or 28%.. I'm thinking the J is 25% ?Â
With the newly added 3.45:1 rear gear set 70MPH is showing
2600RPM. Nice for our NM long distances.... Factory is saying 90wt
gear oil... what is your recommendation for oil? Seems heavy for
cold weather temps. DP<br>
</p>
<div class="moz-cite-prefix">On 11/30/2021 7:59 AM, DAVID MASSEY
wrote:<br>
</div>
<blockquote type="cite"
cite="mid:207685960.1579868.1638284347138@mail.yahoo.com">
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<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>
<div><br>
</div>
<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>
</div>
<div> <br>
</div>
<div style="clear:both"><font size="4">Dave </font><br>
<br>
</div>
<div> <br>
</div>
<div> <br>
</div>
<div
style="font-family:arial,helvetica;font-size:10pt;color:black"><font
size="2">-----Original Message-----<br>
From: David P <a class="moz-txt-link-rfc2396E"
href="mailto:frogeye@porterscustom.com";><frogeye@porterscustom.com></a><br>
To: DAVID MASSEY <a class="moz-txt-link-rfc2396E"
href="mailto:dave1massey@cs.com";><dave1massey@cs.com></a>;
<a class="moz-txt-link-abbreviated"
href="mailto:triumphs@autox.team.net";>triumphs@autox.team.net</a> <a
class="moz-txt-link-rfc2396E"
href="mailto:triumphs@autox.team.net";><triumphs@autox.team.net></a><br>
Sent: Tue, Nov 30, 2021 8:40 am<br>
Subject: Re: [TR] OD gear box question<br>
<br>
<div id="yiv4030526766">
<div>
<div>Yes, J type for a 71' TR6Â Â Â Yep, some angle iron
made it work.. No drilling needed... a MIG yes.. LOLÂ
Dave, do you know the reduction percentage of the J
type? dp<br clear="none">
</div>
<div id="yiv4030526766yqt41292"
class="yiv4030526766yqt6272277377">
<div class="yiv4030526766moz-cite-prefix">On
11/30/2021 7:34 AM, DAVID MASSEY wrote:<br
clear="none">
</div>
<blockquote type="cite"> </blockquote>
</div>
</div>
<div id="yiv4030526766yqt80275"
class="yiv4030526766yqt6272277377">
<div>
<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">
</div>
<div> <br clear="none">
</div>
<div style="clear:both;"><font size="4">Dave </font><br
clear="none">
<br clear="none">
</div>
<div> <br clear="none">
</div>
<div> <br clear="none">
</div>
<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"
moz-do-not-send="true"><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
moz-txt-link-freetext"
moz-do-not-send="true">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"
moz-do-not-send="true"><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"> Â 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"
moz-do-not-send="true">WWW.PORTERBIKES.COM/</a><br
clear="none">
</div>
<div dir="ltr"><br clear="none">
</div>
<div dir="ltr">** <a rel="nofollow noopener
noreferrer" shape="rect"
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target="_blank"
href="mailto:triumphs@autox.team.net";
class="yiv4030526766moz-txt-link-freetext
moz-txt-link-freetext"
moz-do-not-send="true">triumphs@autox.team.net</a>
**<br clear="none">
</div>
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</div>
<div dir="ltr">Donate: <a rel="nofollow noopener
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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"
moz-do-not-send="true">WWW.PORTERBIKES.COM/</a></pre>
</div>
</div>
</div>
</font></div>
</div>
</blockquote>
<pre class="moz-signature" cols="72">--
Porter Custom Bicycles 2909 Arno St. NE Albuquerque, NM. 505-352-1378 My World
go here: <a class="moz-txt-link-abbreviated"
href="http://WWW.PORTERBIKES.COM/";>WWW.PORTERBIKES.COM/</a></pre>
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** triumphs@autox.team.net **
Archive: http://www.team.net/pipermail/triumphs http://www.team.net/archive
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