Okay my 1988 MJ has always leaked a little oil from the rear main seal, a couple days ago it started leaking like crazy! I went in and replaced the main seal today. Fired the truck up and it is still leaking a lot, the oil comes down between the engine and tranny. I'm pretty sure I did everything right, so I'm wondering if there is something else that could cause an oil leak in that area, or did I screw something up? Also should the I be able to see some defect in the old seal? because it actually looked pretty intact. I've already checked the valve cover and that is not the culprit either. Any help would be greatly apprecieated.