This GMC Sierra 3500HD delivers a Turbocharged Diesel V8 6.6L/ engine powering this Automatic transmission. TRANSMISSION, ALLISON 10-SPEED AUTOMATIC, THUNDERSTORM GRAY, REAR AXLE, 3.42 RATIO.* This GMC Sierra 3500HD Features the Following Options *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)., AT4 PREMIUM PLUS PACKAGE includes (PDO) AT4 Preferred Package, (CF5) power sunroof, (CWM) Technology Package and (VXW) Off-Road High Clearance step, LPO , LICENSE PLATE KIT, FRONT, HIGH IDLE SWITCH, GVWR, 12,100 LBS. (5488 KG) WITH SINGLE REAR WHEELS, 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 PREFERRED EQUIPMENT GROUP includes standard equipment, ASSIST STEPS, POWER-RETRACTABLE, BLACK includes LED lighting, 3 YEARS SIRIUSXM, Wireless Phone Projection for Apple CarPlay and Android Auto.
