I searched the threads and didn't see one for this problem, if I duplicated, I apologize. I have a 96 Chevy Pickup, with a 5.7L 350. Started noticing oil dripping out of the service cover for the tranny. I cleaned the engine and found it's leaking at the base of the oil fill tube where it mounts to the valve cover. I think it's been leaking for years as the valve cover has always been covered in a little baked on oil. It never made it to the ground so I never looked real hard. I had the tranny replaced and they cleaned out all the slugde built up in the service cover and now it leaks everytime I park it. Can I tighten the fill tube or do I have to remove the valve cover to get to it? Suggestions?