I'm looking at a 96 ram 1500 and I have a question. The rear (9 1/4) is locked. This might be good if it's a locker! It came from the factory with a limited slip, anybody ever had a L/S lock up and act like a locker due to wear? A guy at a used lot has it and doesn't know the history, I jacked it up and checked and it is definetly locked and I really want that to be on purpose. Just wondering if anyone else might have a better idea without popping the cover off. Thanks!