I have been leaking oil for a while now on my 91 5.2l Dak. I have been suffering from a good deal of rust building up underneath (Hoping to get to a body shop to salvage as there isn't any rust on the outside of the truck). Anyway, it appears that my oil pan may be the cause of the leak as it too has a good deal of rust on it. Is it possible to change the oil pan in the 91 without droping or raising the engine? Any help would be greatly appreciated.