todd is correct in pointing out some inaccuracies in your
email. the J-type was built for your late model car, the A-types
for the earliers. the 2 overdrive gears that the j-type offers are
enough for my driving. i'd go with what was built for your year,
will save alot of explaining in the future as to why you've got an
a-type in a "j-type period" car.
my 2 cents....
Tom Di Iulio
1976 TR6 (w/ j-type)
Denver, Co
----- Original Message -----
From: "Ronald A. Dowty" <rdowty@dowtyenterprises.com>
To: <6pack@autox.team.net>
Sent: Monday, December 09, 2002 3:00 AM
Subject: Which overdrive A or J?
> I am currently working on my 76' TR6 to be finished by Spring if I keep
> hurrying. The rolling chassis should be done tomorrow and I have all the
> replacement panels bought if not installed on the body. The engine is
> also ready. One of the two things I need are an overdrive and AC. I'll
> ask the AC question later. I'm waiting for a guy named Roger Bollick to
> finish his article on installing one using Vintage Air parts. As for the
> overdrive I realize the J type was correct for my car but it was
> originally a non overdrive car so the frame brakets need to be modified
> where as the A type is mostly a drop in. The question is which is
> better. I think the A type works in 3 and 4th gears and the J type only
> works in 4th where I'd probably use it. I was going to keep watching
> eBay for a few months and if I could get one reasonably I was going to
> pick it up. I have a 70 parts car and a working non-overdrive
> transmission from it as well as the one from the 76. I'm not super
> worried about having a J because I have a later car. I'm buiding a daily
> driver and I want it to have the best of both worlds like an early head
> (actually my later one is just shaved to 9.5:1) and earlier bumpers but
> with some of the later improvements like the brake pistons (which are
> usually upgraded on rebuilds).
>
> So which is better and why? I've never had an overdrive but the speed
> limits here are about 20 MPH faster than the last time I drove my baby.
> I need to be able to cruse at 70 just to drive from one side of town to
> the other on the bypass.
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