The dealer has those plugs they round off all the time.
Thanks.The dealer has those plugs they round off all the time.
Hopefully you were using a breaker bar?The 24mm heads on the rear diff and transfer case were also very tough to remove, and now have a bit more wear than I would like.
That helped a lot.90341‑18057
That might be the drain plug for rear diff. From that you should be able to find the washer.