Any special tools needed to pull apart the rear differential on a 85 Jimmy. As far as I know its the OEM 10 bolt. Anything I should watch out for? I am off tommorrow, and think its goign to be rain free. I am planning on pulling the cover and taking a look to see if anything is broke, etc... Also, whats the best lub for it? I have some permatex stuff to use to seal it back up, is that good enough for the cover, or is their a better way?