Went to the track Friday and Saturday. Made about 10 passes total. Friday was on street tires with no traction. Saturday on d.r. and hooking up good. Well tonight I moved my car and seen a oil spot where the rear was. Looked under the car and its leaking out of the gasket at the cover. Sorry I cant think of the proper name but where the gears are. Anyway. Is this a common thing to happen? I had a little wheel hop Saturday on my first few passes. After lowering the tire pressure it hooked with no hop. Don't know if this caused the leak. If the wheel hop caused it is there anything I can get to help keep this from happening again? I've got a warranty so I'm just waiting on word if I have to return the car to stock to get it fixed. Thanks for the info.