Yes I finally got this fixed. Evidently with the wheels being designed for 10x1.25 lugs the 12x1.25 lugs were not seating deep enough in the wheel. I borrowed a Countersink bit from dealer and just barely touched the wheels with it. Tightened to 65 ft/lbs and they have stayed tight for several months now.did you get this fixed? what was the problem? right lug nuts?