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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% ? 
      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' 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">
                </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">  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
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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>
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            </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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