ONE OWNER, NON-SMOKER, 2011 GMC SIERRA 2500HD CREW CAB SHORT BED 4X4 IN SUMMIT WHITE, 6.6L DURAMAX TURBO DIESEL, ALLISON AUTO, HEAVY DUTY TOWING PACKAGE INCLUDING LOCKING REAR DIFFERENTIAL AND ELECTRIC TRAILER BRAKE CONTROLLER, FULL POWER EQUIPMENT, CAMPER MIRRORS, CHROME WHEELS AND PERFECT CARFAX REPORT!!!