I've got a 2000 929 nitro and 2000 model trailer not sure which brand, but the disc brakes keep[ giving me trouble, coming back from fishing and noticed some smoke rolling off the rear, stopped and the wheels where hot as hell, couldn't touch them, grease was dripping out the buddy bearings, let them cool off for a little bit and try to get home, didn't have a problem the rest of the way, it's done this twice on me, obviously the pads are rubbing and causing the wheels to overheat, visually looked at everything, looks fine, the tongue is not locked up, any suggestions, thanks