Re: rear main? am i right?
I think you have the 2-peice main seal. So You get buy with just replacing the lower seal, b/c the oil will leak form the LOWER seal not the upper one. so you only have to take the one main bearing cap off, and the oil pan. This is not from experiance so you might what to see what everyone else thinks about this. I got it from my shop teacher. He said it wouldn't leak from the upper seal b/c the oil sits in the bottom of the pan.
94 GMC 6" superlift 3" body