I'm having a mechanic buddy help me swap out my 3.91's to 4.56's soon and I'm lining up my parts list. Do the 2001 front and rear diffs take a gasket or RTV? I've never cracked mine open so I don't know, but I called a local Toyota parts counter to see if they had them and the guy said he couldn't find any in the system and he's pretty sure it uses RTV. This, of course, was the same darwin candidate that didn't know what a transfer case was when I went in to pick up replacement drain/fill plug gaskets.
