Originally Posted by vafactor

As a side bar, it's important to use a diff nut that goes straight onto the threaded stud that's sticking out of the axle. Often the plastic nuts don't thread on straight. So they push harder on one side of the thrust cone (or bearing) than on the other side. A crooked diff nut will make it impossible to obtain a free diff action. The easiest way to overcome this issue is to use an aluminum nut with the nylon locking collar. Those are threaded at the factory so the threads are square with the flat surface that presses on the diff cone. Lot's of guys overlook this simple item. If you use a crooked nylon diff nut with a rigid diff cone, the outer bearing will go bad almost immediately, and your always crunchy diff will drive you crazy. So it's well worth the trouble to find a diff nut that threads on absolutely straight. Just buy a couple of the aluminum locknuts. Problem solved. Happy motoring.