Do I need a snubber on a 8 3/4 rear end?
I only know about MY car, which is a four speed with DOT radial slicks. This is with 002/003 springs and Mancini shocks.
I welded a heavy pad onto the floor where the snubber is. The snubber is Mancini's set about 1" from the pad. When the slicks are on a sticky surface, the snubber makes a real difference. Without it, I had wheel hop. My buddy said that the front segment was wrapping up. On the street, it doesn't matter becasue the tires don't hook.
If your car is close to stock, or if you don't have SS springs, you don't really need a snubber. The stock one is about a mile away from the floor anyway.