I was going to change my rear differential fluid last night and I tried to loosen the plug and I couldn't budge it. I mean I tried with all my might and nothing. I even bent the allen wrench I was using. I don't think I had quite the right size wrench though because I think it was standard size since there was a slight amount of play. Anybody have an idea of what metric size allen wrench this nut takes? I got the front one off no problem. I don't know if they lock-tited it from the factory or what? Anyone else ever had this problem?

 

Stripped my front diff. drain plug, got a bolt from dealer 10 mil. I think and there was enough threads left up inside so I used it and it works fine . The stock plug threads are too short.

 

tap with hammer (fairly hard) first then try with allen wrench (this works 90% of the time) or use a needle nose vise grip pliers ! (tap first !!)

 

Purchase a metric allen key socket set and you will have no problems removing the plug.

 

Also, Lefty loosey,,Righty tighty.

There is no LocTite on those threads nor should there ever be.