Sierra Denali 4WD Crew CABREAR AXLE 3.42 RATIO, HIGH IDLE SWITCH, JET BLACK FORGE PERFORATED LEATHER SEATING SURFACES, ENGINE DURAMAX 6.6L TURBO-DIESEL V8 B20-DIESEL COMPATIBLE (445 hp [332 kW] @ 2800 rpm 910 lb-ft of torque [1220 Nm] @ 1600 rpm) (Includes (K05) engine block heater.), GVWR 14 000 LBS. (6350 KG) WITH DUAL REAR WHEELS, TRANSMISSION ALLISON 10-SPEED AUTOMATIC, DENALI PREFERRED EQUIPMENT GROUP includes standard equipment, GOOSENECK / 5TH WHEEL PREP PACKAGE -- Hitch platform to accept Gooseneck or 5th Wheel hitch. Includes hitch platform with tray to accept ball stamped bed holes with removable caps installed and bed mounted 7-pin trailer harness (similar to UY2 harness)., TIRES LT235/80R17E ALL-TERRAIN BLACKWALL, ONYX BLACK, Locking/Limited Slip Differential, Cross-Traffic Alert, 4-Wheel Disc Brakes, Requires Subscription, Aluminum Wheels, Power Windows, Blind Spot Monitor, Four Wheel Drive, Rear Parking Aid, Lane Departure Warning, Front Collision Warning, Tires - Rear All-Terrain, Front Collision Warning, Conventional Spare Tire, Tow Hitch, ABS, Tires - Front All-Terrain, Tow Hooks, Running Boards/Side Steps, Bluetooth Connection, Power Steering, Automatic Highbeams, Heated Front Seat(s), Satellite Radio, Front Collision Mitigation, Seat Memory, Adjustable Steering Wheel, Heated Rear Seat(s), AM/FM Stereo, Traction Control, Integrated Turn Signal Mirrors, Bucket Seats, Requires Subscription, Security System, Smart Device Integration, Heated Front Seat(s), Front Collision Warning, Heated Mirrors, Requires Subscription, Auto-Dimming Rearview Mirror, Power Mirror(s), Power Driver Seat, Keyless Entry, Driver Adjustable Lumbar, Passenger Adjustable Lumbar, Aerial View Display System, Mirror Memory, Driver Restriction Features, Remote Engine Start, Auxiliary Audio Input, Pass-Through Rear Seat, Front Collision Mitigation, Rear Defrost, Auxiliary Audio Input, Satellite Radio, Cruise Control, Tire Pressure Monitor, Bed Liner, Front Side Air Bag, Floor Mats, Front Head Air Bag, Fog Lamps, Keyless Start, Sliding Rear Window, WiFi Hotspot, Steering Wheel Audio Controls, Power Door Locks, Driver Air Bag, Telematics, Power Passenger Seat, Power Door Locks, Back-Up Camera, Rear Head Air Bag, Rear Bench Seat, Power Outlet, Cross-Traffic Alert, Lane Departure Warning, Passenger Air Bag, Rear Parking Aid, Premium Sound System, Cooled Front Seat(s), Passenger Air Bag Sensor, Leather Seats, Privacy Glass, Multi-Zone A/C, Automatic Highbeams, Daytime Running Lights, Rear Defrost, Bluetooth Connection, Running Boards/Side Steps, Blind Spot Monitor, Smart Device Integration, Power Windows, Climate Control, Daytime Running Lights, Stability Control, A/C, Auxiliary Audio Input, Power Outlet, Power Folding Mirrors, Floor Mats, Navigation System, Universal Garage Door Opener, Bluetooth Connection, Heated Steering Wheel, Integrated Tailgate Step, MP3 Capability, MP3 Capability, MP3 Capability