I have heavier wider 18" rims/tires on my car, ran it that way, very hard, for 30k miles, then popped in 4.77s, and drove hard for another 10k miles and here I am. Diff working 100% correctly...

Only thing I HAVENT done is driven like an idiot, done burnouts, dumped my clutch AT ALL, or power shift.

I shift as fast as I can when Im trying to go fast, but I still use the clutch and shift properly..

I dont know, Im probably just lucky