GVW RATING - 13,000 LBS, POWER SUNROOF, 50-STATE EMISSIONS, 3.73 REAR AXLE RATIO, HEATED/COOLED FRONT SEATS, DURAMAX 6.6L V8 TURBO DIESEL, ALLISON 6-SPEED AUTOMATIC TRAN, SKID PLATE PACKAGE, SLT CONVENIENCE PACKAGE INCL:, LT235/80R17 ALL-TERRAIN, 17. POLISHED ALUMINUM WHEELS, 6 MTHS ONSTAR DIRECTIONS &