Chris,   I'm getting ready to put the oil pan back on my 77 gas engine and have a question.  Both the timing cover gasket and the rear main seal retainer gasket stick down about 1/8&quot; past the surface where the pan gasket will meet the block.  I assume I should get these down flush with the surface -- is that correct?  If so what is best way?  And should some type of sealant be put right on those edges, where the metal does not meet those 2 gaskets tightly?

Thanks for your help.

Tom