I have the traditional rear main seal oil drip on my 69 Z 302. Engine runs well, so this is just an annoyance. Can this be fixed removing only the pan, oil pump, and rear main cap?, i.e. without major disassembly. And with a high degree of confidence it will not leak again? Or live with it? Adding oil is no big deal, but it gets oil all over the bottom of the engine/trans, the major cause of my annoyance. Thanks.