I'm changing the 200C for a 350 and the search is down.

Are the ratios allways the same for a TH350 - like 2.52, 1.52 etc. because I think I saw something about trucks having 2.74 and 1.57.

I read that I should start with a late 70s core for the rebuild but I need to know if that should be out of a particular vehicle type or are they all the same ratios.

Read to that the B&M swap kit does not have everything you need and the Hurst kit does - is that correct and if so what's missing.

Finally, what stall to use. The car has a stock LG4 with Hedmans and a Hooker cat back. Rears are 3:23s. Tyres are 26 inch.

The car is used for aggressive street more than anything else. Will probably install HO350 GM crate eventually but I expect I'll need another converter when that happens.

Thanx

 

all th350 are same ratios 2.52 1.52, who told you they are different in trucks ???

im trying to put a th350 in place of 200 and having hell of a time with B&M crappy instructions, they tell you to remove extension housing and that is really stupid thing to put in the instructions

anyone know whats going on ?

 

Yeah they are all the same. I had seen in a thread that some were different and I wanted to clarify it. I think someone had confused the 200C for a 350 with different ratios 2.74 1.57 etc.

 

i feel really bad that your having a hard time, because i thought the TH350 swap was incredibly easy

i pretty much junked the B&M instructions (although i did use them when installing my MegaShifter)

i had to drill a few extra holes in the bracket


you do not need to remove the tailhousing...........just 3 out of 4 of the tailhousing bolts to put the bracket on, then put the bolts back in