Some of that noise may be caused by the Detroit Locker.
Yeah I was wondering about that. I get a clunk out of the rearend when I shift into Reverse or Drive. Since the isn't moving I figure the clunk must be coming from some play in the driveline. Could be the Locker that clunks a little bit. The car doesn't have any carpet in it and the rear is all aluminum panels so a clunk in the rear end sounds pretty loud inside the car.
