I probably shouldnt tell anyone this but I had the same thing happen to me when my NEMESIS was new.I disassembled my entire truck and put it back together,never found a thing wrong.Problem was,all the torque from this beast had made light work of my tire glue[X(]Yea,I know,what an idiot.At least it gave me a chance to become familiar with my truckDont know why,but the fronts stay glued pretty good,but I have to check the rear quite often.The tires would feel snug to the touch,but under hard torque they would slip.