Hey guys... Been a member here for a while, but *knock on wood* I haven't had to go searching for answers to problems too often. But I have one now!! HAHA. Ok, A while back, my Diff Thrust bolt got sheared off right underneath the head of the bolt. I replaced it, and it hasn't really stayed tight since. It occasionally loosens itself and then the truck refuses to go anywhere. I'm thinking since I have some larger tires (equivalent in size to the masher /masher 2000 tires by proline) it's not helping my situation. I even tried threadlock on the bolt/lock nut (while taking care to keep it out of the diff). Anyone have any ideas what's going on? Over tightening diff? Not tight enough? Help!![X(]