Rear End Carnage!!!!!

Yeah, the car was launched. It hooked and even with traction bars it wheel hopped. Broke teeth off the ring gear, and the cap that is pictured above.

DoctorDiff, its looking like the 8 3/4 is going to stay. Can't convince my old man its time to upgrade. What do you recommend to keep this from happening again? I know very little of the internals of a rear. But i know all the external factors to keep from wheel hopping and to make sure there is linear power application. Hopefully we can prevent this on multiple levels.