what would i need to do to swap my 700r4 to this turbo 350?? I know i will have to get either a longer or shorter tailshaft? what else would i need to do?? converter and would it bolt up? also what about the crossmember? any advice would be great

 

th350 trannies came in thrree different lengths for 2 wheel drive 1969 to 1986

for the 700r4 you need a th350 with the 9" tail

find them in some wagons and in all the trucks from 73-up

then you dont need to change driveshaft


some of the 70s wagons are the 12" tail, but not so common, so watch out



a th400 will take the 700r4 shaft but you gotta convert to the 32 spline 400 slip yoke

some 400 used a bolted on yoke, mainly in trucks and vans


but you can use a slip on one just the same on them, no difference other than a threaded hole in the end of the tailshaft for the bolted on ones

 

thats helps alot!! thank you very much.... my local parts store has a th-350 streetfighter from tci that a customer ordered for 1800 bucks.. he never came and got it so he offered it to me for 450! im thinking yea.. trading out my 700r4 and this 350 is brand new lol... so i may have to find a diff tail shaft depending on which one he has... other than that is everything else pretty much a straight shot? like the trans lines and kickdown cable and crossmember mount?

 

You will also have to get the B&M or Hurst kit to attach the torque arm to the TH350 or TH400.