Sierra 2500 Long BOX 4WD DBL CABENGINE VORTEC 6.0L VARIABLE VALVE TIMING V8 SFI E85-COMPATIBLE FLEXFUEL capable of running on unleaded or up to 85% ethanol (360 hp [268.4 kW] @ 5400 rpm 380 lb-ft of torque [515.0 N-m] @ 4200 rpm) with (E63) fleetside pickup box; (322 hp [240.1 kW] @ 4400 rpm 380 lb-ft of torque [515.0 N-m] @ 4200 rpm) with (ZW9) pickup box delete (STD), Driver Air Bag, ABS, Privacy Glass, Driver Vanity Mirror, Stability Control, Rear Head Air Bag, Cloth Seats, Power Windows, Passenger Vanity Mirror, Leather Steering Wheel, A/C, Driver Illuminated Vanity Mirror, Front Head Air Bag, Pass-Through Rear Seat, Tires - Rear All-Season, Passenger Illuminated Visor Mirror, Heated Mirrors, Front Side Air Bag, AM/FM Stereo, Aluminum Wheels, Passenger Air Bag, Tire Pressure Monitor, CD Player, Locking/Limited Slip Differential, Traction Control, Tow Hooks, Floor Mats, Keyless Entry, Driver Adjustable Lumbar, Auxiliary Audio Input, Adjustable Steering Wheel, Split Bench Seat, Passenger Air Bag On/Off Switch, Power Mirror(s), Tires - Front All-Season, Back-Up Camera, 4-Wheel Disc Brakes, Four Wheel Drive, Tow Hitch, Rear Bench Seat, Navigation from Telematics