Rear crank seal replacement ??

The way I did mine is I glue the side pieces to the engine block with black 3M Weatherstrip adheasive, just a thin bead of the adheasive, press on block and let it dry. Then I do a thin film of Permatex Black RTV sealer on the top of those side pieces and let that set up for 10 minutes. Then thin film of RTV sealer on the end pan and block surfaces. A bead of sealer in each corner. Carefully lower pan into place and slowly cross tighten pan down.

There was a thread on oil pan gaskets recently and one person said they used a thick bead of RTV instead of the end gaskets. I think that would work well assuming you get the bead the right thickness. Put pan up and eye it up first. I do my intakes like that, no gaskets on the ends and will probably do my oil pan like that next time.

I use Felpro cork/rubber (side pieces) gaskets and have had good luck on getting it 100% sealed up. You have to take your time and go slow. And do not over tighten the pan.