Can anyone tell me how long th edriveshaft is to use a TH350?

 

it needs to reach from the rear end to the output shaft. if you could provide all the details someone might be able to help you a bit more.

 

Depends what TH350 you use. The 2 most common ones are 6" and 9" tailshafts. The real short one is a 3" tail shaft but it's not very common.

A 700R4 driveshaft will work with a 9" tailshaft TH350. The 3 speed auto that came in the 82-83 third gens is a 200c. The driveshaft for that will work with the 6" tailshaft TH350.

The lengths are not 100% correct but are close enough to do a tranny swap. If you want a custom made driveshaft, do a proper measurement.

 

I assumed ones would know if I was asking I was using a TH350 6" shaft.

 

if you have a 6" tail shaft you'd need around 3 more inches on the stock DS. best bet would be to mock it up and measure what you actually have and need