buick 350 and tranny swap

yeah, planning on running the bop th350 so it'll bolt right to my buick 350 motor, and I found the other day that the AA th350 to D18 adapter is 1.85" long, whereas the Novack th350 to D18 adapter is like 3.1" long. Not a big difference, unless you are running a cj5, hehe.

What is the height like on a th350 vs. a t-18? Is it going to be easier to "tummy tuck" my drivetrain with a th350 vs. a t-18?

 

Yea, you should.
Length is the major issue with TH transmissions, they’re actually shorter top to bottom and provide better ground clearance than most standards transmissions.

 

I was trying to come up with one the other day, too. Jeep used the TH400 for both the BOP and AMC pattern. Even if you used a GM 4x4 TH350 and swapped parts, the New Process pattern doesn't do us any good, so you're buying a Novak kit anyway.

 

If you really want to go crazy, the 700r4 is the same length as a TH400 with a lower first gear than the TH350 and has an overdrive.
If you're going to buy an adapter anyways.

 

My BIL ran a a 700r4, 18 Tcase, and a 327 chevy in his MB.
The rear driveshaft was really short. Maybe 12"
He ran 5.38 and 33"
Was a DD, on the freeway, he never had any problems.
he did have trans pan to front driveshaft issue's.
But he was running a d27.
If you outboard the front with wider axle this shouldnt matter.

 

the 5.7 deisel gm 4x4 had bop th350

 

If we’re talking military GM Diesels I’m pretty sure the CucV, HumV and Blazer all had TH400’s.