Rear crank seal replacement ??

If you take off the rear main cap the seal that is in the block is most likely rubber and all you have to do is press on one side and it will pop out the other. Grab it with needle nose pliers and pull it out. The new seal will slip right back into the block, lip facing in, and put a light amount of oil on the seal where it hits the crank or it will burn up when you start the engine.

Clean main cap and block sufaces with clean paper towels and Brake Parts Cleaner (Walmart or auto parts store). Get sufaces 100% clean. Put thin film of Permatex RVT sealers on the cap to block suface or it will leak. I use Felpro rear main oil seals and no leaks here.

Lip facing in don't forget or you will be doing it again. Light oil on lip where it hits crank. Dab, very small dab, of sealer where the two halves meet. Make sure its a small enough dab is won't squish onto the crank, just a little thin film is all you need. You don't want any sealer anywhere close to the crank to seal surfaces.

Make sure you put a bead of sealer in the corners where the oil pan gaskets meet and take your time.

If done right it won't leak a drop.