I have a 1980 trans am and would like to remove the T-300 trans and install a T-400 trans. What will I need to replace to make it fit

Asked by Jan 06, 2015 at 11:07 AM

Question type: Car Customization

1 Answer


Nothing the T-300/350 & the T-400 bell housing bolt pattern are the same. But I don't know about fitment since the T-400 is bigger round & longer too. Plus don't forget to check the shifter location. Was the T-400 an option for the 80' Trans Am? I had a T-400 in a sb hot Chevy pickup. I used a 2000 rpm stall speed convertor & a "bang shift" B & M valve body.

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