Originally Posted by Artist4Hire
personally, I would prefer the 400, I have had both one in a one ton dually and one in a 91 trans am convertible...man I miss that car. But the Turbo 400 seemed pretty bullet proof to me. I tried and couldn't kill it.

unless you swapped out the 700R4 for a TH400 in the TA, your trans had 4 gears and was a 700R4.

Regarding which trans is better, would depend on what you are looking for. Short trips, parades and minimal usage, I would stick with the original 3 speed non overdrives such as the TH350 or TH400. For any amount of driving, distance, etc. look into an OD trans. The 700R4 is a TH350 derivative with 4 gears (last being OD). This trans became the 4L60 and then the 4L60e. If you want the prodigen of the TH400, look into a 4L80e found behind BBC's from early 90's onward. Any of the E trans will need a controller, the 700R4 needs a vacuum switch and a brake switch to go into overdrive.

The problems we face today can not be addressed at the same level of intelligence we were at when we created them - Albert Einstein Or with the same level of $ - Me