What is probably the best driveshaft for my 93 trans am. Its an automatice, and price isnt really too big of a deal I just want one that will stand up to just about anything. I know its planning ahead a little much but do any of you guys have a th-400 on your car. If you do did you have to get a custom driveshaft cause of different length of the th-400 or is it the same length as a 4L60(700-R4) Also, a tech shop told me they recommend using a tranny cooler even on the th-400, I have cooling lines that run to the transmission from the radiator, I was wondering if that would be decent cooling for th-400. Or do I need to get a tranny cooler for it when I get it.

 

You can always have a driveshaft shortened or made if it doesn't fit. I would reccomened an aftermarket cooler thought o make sure you don't overheat th tranny. The cooler in the radiator is small.