Has anyone had problems with the 2X2 receiver enlarging and getting sloppy? Chevy replaced mine NO CHARGE after 35,000 mi. Of which 20,000 mi was hauling a 12,000 lb load using a properly adjusted weight distributing hitch. Chevy won't put on a 2.5X.2.5 receiver as they said it would violate policy and law. <GRIN>. At 55,000 mi with an additional 10,000 mi hauling it is doing it again. Looks like the metal of the receiver might be soft. I've hauled for 35 years and never had this problem, all using Chevy Trucks.