I had no leaks when I took my 07 Ultra Classic with 7300 miles to Local independent shop to changed engine, transmission and primary oils, after getting home found I had a leak at primary. Seem like it was coming from Primary drain plug. Went back and they removed plug, installed new "O" ring and refilled Primary with new oil. They said that corrected the leak. Was checking today and still have leak. The leak seems to be coming from Primary cover at the bolt just behind the drain plug, not the drain plug. I think primary gasket could be leaking. Seem like the shop would have seen this while checking. Is this common after a fluid change on Primary? They also adjusted clutch while Derby cover was off while engine was still warm. Could the Independent shop have done something to cause this???? I guess I will have to correct this myself.