Bearing buddies do not work on these kind of hubs. The center oil cap screws off, whats left of the oil comes out, take it apart, inspect, probably install new bearings and seal, then put all back together, fill cap with the lucas lube, screw cap on, check level in a bit and you are done. You tube can also be your friend. NO GREASE IN THESE TYPE OF WHEELS. Good luck with the projectWhen using bearing buddies jack up the wheel off the ground and spin it while you are giving it shots of grease. Quit when you feel resistance on your grease gun pump. Nothing wrong with bearing buddies you just have to know how to do it correctly. They aren't the answer if you need your bearings packed!