Yeah the rear main seal on mine is trashed also....but it is 47 years old to. Leaks a court of oil in about a month. I'll tell you..gaskets can be a pain...you pull them once...and you have to get another one. I've changed my valve cover gasket 6 times and am gonna have to change it again. Oil pan gasket needs to be changed also. But with a 140,000 miles and being 47 years old....I would be a little leaky to! HAHAHAHA!!! LOL! Hope you get John Lee fixed up soon! T.J.