I have a strange problem. I ran my XB4 for the first time on carpet this past weekend with a 6.0 mod motor. The car felt fine but the majority of my runs, at about 4 minutes in, one of the front wheel nuts would fly off along with my wheel. I am running the stock 4mm serrated nut, 1 slot hub, stock drive axle and premounted Schumacher wide stagger tires. Has anyone else experienced this issue? I am thinking of using blue loctite and seeing if that solves the problem if nothing else.