LTZ CREW CAB VALUE DISCOUNT, POWER SLIDING REAR WINDOW, GVW RATING - 7000 LBS, FEDERAL EMISSIONS, REAR AXLE 3.42 RATIO, TRAILER BRAKE CONTROLLER, SEATS, HEATED/COOLED FRONT, VORTEC 6.2L V8 SFI ENGINE, GROUP CONTRIBUTION, 6-SPEED AUTOMATIC TRANSMISSION, 18. ALUMINUM WHEEL, LTZ PLUS PACKAGE:, 18. ON/OFF ROAD BW TIRES, AM/FM STEREO W/ 6-DISC, REAR VISION CAMERA SYSTEM, OFF ROAD SUSPENSION PACKAGE: