How do I replace the rear main seal?

[jghall6]

I have my transmission out for a rebuild and I was thinking about replacing the rear main seal. How difficult is this on a 87 GN?

 

[salvageV6]

Here is one good article on how to do it.

Courtesy of gnttype.org.

Rear Main Seal Replacement

 

[87geeinn]

Make sure you do not skip the step that involves sticking a wire up into the side cavities. I pulled my rear main cap off and it was still not cured after three days even with the oil pan off. Don't ask.

 

[salvageV6]

Not sure if the article mentions "The Right Stuff" but it's a good gasket maker/sealant to use in that application.