Ohhhh no....I wouldn't put a 7.5 in anything (weak piece of junk) if I HAD to swap rear ends. The race mav is a 9" and the street car is a 8" 2.79 5 lug. The 7.5 is in the '84 Mustang GT....and if it wasn't for the fact that I found a '86 TC rear drum-to-drum for $25, it would have been yanked and replaced with a 9" (I have the brackets already to weld them on..) It was just easier to replace a few broken parts in the 7.5 at the time, plus it's about 100 lbs lighter than a 9" and at 41 MPG I don't wanna mess with it too much. It howls like a raped dog but with fuel prices up and another motor to build, I wanted to save a few $$$ and stick with the weeny 7.5".

When it broke, it took out the 2 smaller spiders, pulverized them into bits and pieces and took out the springs with 'em. Other than that, it looked good. The 3.73's were saveable. So, in short--no more drag racing the Mustang as long as the 7.5 is in it. Sure saves the T5 too (weak)....and I absolutely love drag racing with a 4-5-6 speed trans. Just too much fun!