TRANSMISSION, 10-SPEED AUTOMATIC, STERLING METALLIC, REAR AXLE, 3.42 RATIO, HIGH IDLE SWITCH, HEAVY DUTY FRONT SPRING/CAMPER PACKAGE Note: If ordered for Camper usage, recommend ordering (UY2) Trailering wiring provisions, 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)., ENGINE, DURAMAX 6.6L TURBO-DIESEL V8, B20-DIESEL COMPATIBLE (470 hp [350.5 kW] @ 2800 rpm, 975 lb-ft of torque [1322 Nm] @ 1600 rpm) (Includes (K05) engine block heater.), AT4 PREMIUM PLUS PACKAGE includes (PDO) AT4 Preferred Package, (CF5) power sunroof, (CWM) Technology Package and (VXW) Off-Road High Clearance step, LPO, Wireless Phone Projection for Apple CarPlay and Android Auto, Wireless Charging. This GMC Sierra 3500HD has a strong Turbocharged Diesel V8 6.6L/ engine powering this Automatic transmission.* Experience a Fully-Loaded GMC Sierra 3500HD AT4 *Window, power front, drivers express up/down, Wi-Fi Hotspot capable (Terms and limitations apply. See onstar.com or dealer for details.), Wheels, 20 (50.8 cm) High Gloss black aluminum wheels, 8 spokes, Wheelhouse liners, rear, USB Ports, 2, Charge/Data ports located inside center console, USB Ports, 2 (first row) located on console, USB ports, (2) charge-only, rear, Transmission, 10-Speed automatic, Transfer case, two-speed active electronic Autotrac with push button control, Trailer Side Blind Zone Alert, Trailer Camera Provisions and trailer viewing software, Trailer brake controller, integrated, Tires, LT275/65R20 all-terrain, blackwall (Requires single rear wheels.), Tire, spare LT275/70R18 all-terrain, blackwall, Tire Pressure Monitoring System auto learn, includes Tire Fill Alert (does not apply to spare tire), Tire carrier lock keyed cylinder lock that utilizes same key as ignition and door, Theft-deterrent system, unauthorized entry, Teen Driver a configurable feature that lets you activate customizable vehicle settings associated with a key fob, to help encourage safe driving behavior. It can limit certain available vehicle features, and it prevents certain safety systems from being turned off. An in-vehicle report card gives you information on driving habits and helps you to continue to coach your new driver, Taillamps, Animated LED Signature Tail, Stop, turn and Reverse lamps, Tailgate, GMC MultiPro Tailgate with six functional load/access features. NOTE: Auto release can be disabled if ball hitch is installed. See Owner's manual for details.* Visit Us Today *Come in for a quick visit at Thornhill GM Superstore, Rt 119 and Trace Fork Rd, Chapmanville, WV 25508 to claim your GMC Sierra 3500HD!