i just cleaned my oil pick-up and pan out a few weeks ago (oil light flickering occasionally @ idle). i just used some high temp red silicone gasket maker, used it on the diffs too. the gasket that was on the oil pan when i took it off was just black silicone, no cork or anything. i was sort skeptical about mud and water for a few days, but all is well, just make sure that you use enough of the stuff, not enough means trouble. also - if you do pull your oil pan clean out your oil pick-up while you're in there - solved my flickering oil light.