I was talking the other day with an ex Hummer tech. I mentioned the popping sound and obviously he said it was very common.
He then proceeded to tell me that the cure is they get an old antifreeze jug and cut up a circle the size of the bushing and place it between the body and bushing.
I know it fixes the problem but the thought of taking a yellow piece of plastic and cutting it up and stuffing it in there just seemed chintzy to me.
I guess if it were a black texaco plastic jug, I'd feel better.
Anyway, just a suggestion to those of you that want to fix it and can't take it to the dealer. Cheap and easy.
Mark