I have been reading these forums for some time and now know that I have to change the fluids on my diffs and transfer case. I went to my mechanic and he said that it wasn't necessary. Now, thanks to you guys, I know better.
Can somebody recommend me a mechanic (I'm in Elizabeth, NJ). I would try to do it myself but I don't have the space, if you want to help me I would be more than happy to come by your place and give it a try. If you want to make a few bucks I would even pay you (if it's reasonable).

thanks