2013 SIERRA 3500 REG CAB 4WD UTILTY BED DIESEL, CARFAX 1-OWNER, DURAMAX DIESEL ENGINE, ALLISON TRANSMISSION, 3.73 REAR AXLE RATIO, LOCKING DIFFERENTIAL, DUAL REAR WHEELS, TRAILER BRAKE CONTROLLER, CAMPER MIRRORS, 13200 LB GVW RATING, 10' READING UTILITY BED, VINYL SEAT TRIM, VINYL FLOORING, AIR COND, CRUISE CONTROL, AM/FM STEREO, ONSTAR & XM DELETE