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well said..
On 10/26/2023 7:31 AM, Greg Lemon wrote:
> The TR6 used both the A-type (early) and J type (late) overdrive. The
> TR3 should be A-type.
>
> I would not want to use a non-synchro first gear box on a TR6, seems
> like a downgrade.
>
> If you don't take the car on trips of any length on the freeway you
> probably don't need overdrive but you might still want it, even if you
> don't because it is a fun option.
>
> I think what others are saying is you can install the A-type from the
> TR3 on the TR6 box (you may need a new main shaft, not sure if TR3 and
> TR6 are the same, but you use a different main shaft with O/D, so I
> don't know if you could use the TR3 overdrive shaft, the more I
> think about it probably not, or you would need to get a TR6 main shaft
> for O/D).
>
> Anyway to put in a new main shaft you need to rebuild the
> transmission, take it all apart and put it back together. I have done
> everything on these cars, engine, suspension, electrics, etc.,
> transmission is the only one I tried twice and gave up on, read all
> the books, measured thrice, installed once, still had a dodgy gearbox
> when done (second gear stopped engaging). Some guys say they took one
> apart and put it back together in an afternoon with no manual over a
> couple beers with and adjustable spanner and a hammer and rod to drive
> bearings in and out and it ran great for years,so maybe I am an idiot
> and your mileage may vary, but transmission rebuilds are tricky in my
> opinion.
>
> Anyway, the A type can be mated to the TR6 box, but it is a bit of a
> chore, you can do yourself or pay somebody,you will also need to
> fabricate new transmission mounts. (fairly easy, there are even
> instructions out there somewhere to do it with angle iron and no
> welding), and your speed drive will now be geared wrong I think.
>
> This is my long winded way of saying I would sell the 3 box and 0/D
> and see if I could get a TR6 box and O/D if it were me. Which seemed
> like it was your original inclination.
>
> Greg Lemon
> TR250
>
>
>
>
>
>
>
> On Wed, Oct 25, 2023, 3:41 PM dave northrup <dave@ranteer.com> wrote:
>
> I recently acquired a car with a TR3 overdrive that probably needs
> to be rebuilt. I was wondering â?? is the non synchro first gear
> really an issue?
>
> The car has a TR4 engine anyway and I have a nice TR6 tranny (non
> overdrive). We do not care about originality; rather we are going
> for performance with a mild cam, 89 mm pistons, lightened
> flywheel, etc
>
> Am trying to decide if I should sell the TR3 tran to fund the
> upgrade on the TR6 tran
>
> both the engine and tran were out of the car; its going to need
> some work anyway
>
> ** triumphs@autox.team.net **
>
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--
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My World go here:WWW.PORTERBIKES.COM/
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<p>well said.. <br>
</p>
<div class="moz-cite-prefix">On 10/26/2023 7:31 AM, Greg Lemon
wrote:<br>
</div>
<blockquote type="cite"
cite="mid:CAFtw3aZLsBsMqhssFABu9ONS78UB9SP=ZFTSjYgwitB+_PTD9A@mail.gmail.com">
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<div dir="auto">The TR6 used both the A-type (early) and J type
(late) overdrive. The TR3 should be A-type.
<div dir="auto"><br>
</div>
<div dir="auto">I would not want to use a non-synchro first gear
box on a TR6, seems like a downgrade.</div>
<div dir="auto"><br>
</div>
<div dir="auto">If you don't take the car on trips of any length
on the freeway you probably don't need overdrive but you might
still want it, even if you don't because it is a fun option.</div>
<div dir="auto"><br>
</div>
<div dir="auto">I think what others are saying is you can
install the A-type from the TR3 on the TR6 box (you may need a
new main shaft, not sure if TR3 and TR6 are the same, but you
use a different main shaft with O/D, so I don't know if you
could use the TR3 overdrive shaft, the more I think about it
probably not, or you would need to get a TR6 main shaft for
O/D).  </div>
<div dir="auto"><br>
</div>
<div dir="auto">Anyway to put in a new main shaft you need to
rebuild the transmission, take it all apart and put it back
together. I have done everything on these cars, engine,
suspension, electrics, etc., transmission is the only one I
tried twice and gave up on, read all the books, measured
thrice, installed once, still had a dodgy gearbox when done
(second gear stopped engaging). Some guys say they took one
apart and put it back together in an afternoon with no manual
over a couple beers with and adjustable spanner and a hammer
and rod to drive bearings in and out and it ran great for
years,so maybe I am an idiot and your mileage may vary, but
transmission rebuilds are tricky in my opinion.</div>
<div dir="auto"><br>
</div>
<div dir="auto">Anyway, the A type can be mated to the TR6 box,
but it is a bit of a chore, you can do yourself or pay
somebody,you will also need to fabricate new transmission
mounts. (fairly easy, there are even instructions out there
somewhere to do it with angle iron and no welding), and your
speed drive will now be geared wrong I think.</div>
<div dir="auto"><br>
</div>
<div dir="auto">This is my long winded way of saying I would
sell the 3 box and 0/D and see if I could get a TR6 box and
O/D if it were me. Which seemed like it was your original
inclination.</div>
<div dir="auto"><br>
</div>
<div dir="auto">Greg Lemon </div>
<div dir="auto">TR250</div>
<div dir="auto"><br>
</div>
<div dir="auto"><br>
</div>
<div dir="auto"><br>
</div>
<div dir="auto"><br>
</div>
<div dir="auto"><br>
</div>
<div dir="auto"><br>
</div>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Wed, Oct 25, 2023, 3:41 PM
dave northrup <<a href="mailto:dave@ranteer.com";
moz-do-not-send="true"
class="moz-txt-link-freetext">dave@ranteer.com</a>>
wrote:<br>
</div>
<blockquote class="gmail_quote"
style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div link="#0563C1" vlink="#954F72"
style="word-wrap:break-word" lang="EN-US">
<div class="m_1996753701077045539WordSection1">
<p class="MsoNormal">I recently acquired a car with a TR3
overdrive that probably needs to be rebuilt. I was
wondering â?? is the non synchro first gear really an
issue?Â
</p>
<p class="MsoNormal">Â </p>
<p class="MsoNormal">The car has a TR4 engine anyway and I
have a nice TR6 tranny (non overdrive). We do not care
about originality; rather we are going for performance
with a mild cam, 89 mm pistons, lightened flywheel, etc</p>
<p class="MsoNormal">Â </p>
<p class="MsoNormal">Am trying to decide if I should sell
the TR3 tran to fund the upgrade on the TR6 tran</p>
<p class="MsoNormal">Â </p>
<p class="MsoNormal">both the engine and tran were out of
the car; its going to need some work anyway</p>
</div>
</div>
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<pre class="moz-signature" cols="72">--
Porter Custom Bicycles 2909 Arno St. NE Albuquerque, NM. 87107 ph 505-352-1378
My World go here: <a class="moz-txt-link-abbreviated"
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