This people is what happens to a diff after going to the drags and expierence alot of wheel hop and then AutoX the next day on a rough surface with RComp tires.

BTW, the engine puts down ~160hp to the wheels with even less torque.









I have since swapped the entire TII drivetrain into the car. I don't expect to break any of those parts. In my 16 years of ownership of this car I have gone through 4 Transmissions, 2 Differentials, 1 driveshaft (Sheared the U Joint), 1 rear subframe (ripped the diff mount OFF the subframe) and 2 differential mounts. Plus, the car has been parked or Track Only for the last 8 years.

 

Looks like you need some poly bushings and a pinion snubber ASAP.
Sounds like this poor 7 has been through hell...