Quote Originally Posted by tom4bren View Post
GL-5 is the weight.

Look here:

http://www.vehicross.info/modules.ph...warticle&id=20

It's on page 0B-7 of the shop manual (page 22 of the pdf file).

When you go to drain the rear differential, you may need to 'plunge' the drain with a piece of wire or a zip tie (I had to on the front so assume you may run into the same issue on the rear). This is to move any debris out of the way so that the fluid can flow out.
Sorry Ol Buddy, but unlike the front, the rear diff has a large drain plug that won't be clogged easily by debris.
I would also recommend removing the fill plug first, as there are few things more frustrating than having a dry (drained) diff & no way to re-fill it...
And don't forget to drive for 5-10 miles to get the fluids up to operating temp, & as much sludge in suspension as possible, before draining...

Also, grease all the zerk fittings (3) on the rear drive shaft, that may take care of the noise on it's own.

Oh yeah...almost forgetted...welcome to the forums...