OK, so I replaced my rear main seal on my M60 engine after it started leaking and causing clutch slippage. I've done all the other "usual" stuff recommended when you remove the tranny, like the center bearing, guibo, trans seals, new clutch, etc. I was all ready to re-install this stuff and thought "maybe I should hook up the exhaust, install the flywheel, and test-fire this sucker. I'd hate to put it all together only for it to leak again." Well, for once I had a good idea! Sure enough, the new main seal is leaking! Crap! How can this be? It's definitely leaking around the seal, not the seal housing or the oil pan gasket. I read a post on another board saying that when you install the new seal, you should position it a little deeper or shallower than the original so that you're not on the same wear spot on the crank as the original. My crank seems a have a raised spot, not a groove, where the old seal was. Anyone have an idea what I could have done wrong? I lubed the new seal and crank before installation. Also, I have the new seal out again and it looks fine, so I didn't damage it during the install. Any ideas?

Thanks,