So after an engine rebuild on my 87 22re im leaking oil from the rear passenger side, it wont leak when running but will leak a decent amount directly after shutting it off and then will stop. the oil pan has been replaced and sealed properly, any help would be greatly appreciated.

 

Get under your truck with some simple green and a rag and CLEAN EVERYTHING thats oily, then start your truck, pull the ebrake or block the wheels, and lie under it till you see oil coming out of somewhere. Or you mentioned it does it when you shut it off, so lie under it when some one shuts the truck off and see where its coming from.