I just had a detroit locker installed in the rear of my CJ7. I like it a lot so far and have yet to get the jeep out of the driveway... I hardly ever know its back there, except when shifting from park to drive or park to reverse. When I do this there is a loud clunk. I had someone else put the Jeep in gear as I watched the rear driveshaft. It actually spins like a quarter turn before it catches and will move the Jeep. I was just wondering if this is normal or what. The locker was used and I believe it is at least 5 years old, but never really used.