WHITE FROST TRICOAT, WHEELS, 20' (50.8 CM) CHROMED CAST ALUMINUM (STD), WHEEL, 18' X 8' (45.7 CM X 20.3 CM) FULL-SIZE, STEEL SPARE., TRANSMISSION, ALLISON 1000 6-SPEED AUTOMATIC, ELECTRONICALLY CONTROLLED with overdrive, electronic engine grade braking and tow/haul mode, TIRES, LT265/60R20E ALL-TERRAIN, BLACKWALL (STD), SWITCH, HIGH IDLE, SUSPENSION PACKAGE, OFF-ROAD requires 4WD models, includes twin tube Rancho brand shocks and (JHD) Hill Descent Control, SUNROOF, POWER, SEATS, FRONT FULL-FEATURE LEATHER-APPOINTED BUCKET with (KA1) heated seat cushions and seat backs. Includes 12-way power driver and front passenger seat adjusters, including 4-way power lumbar control, 2-position driver memory, adjustable head restraints,(D07) floor console and storage pockets and (K4C) wireless charging (STD), REAR AXLE, 3.73 RATIO. This GMC Sierra 2500HD has a dependable Turbocharged Diesel V8 6.6L/403 engine powering this Automatic transmission. These Packages Will Make Your GMC Sierra 2500HD Denali The Envy of Your Friends DURAMAX PLUS PACKAGE includes (L5P) Duramax 6.6L Turbo-Diesel V8 engine and (VQY) chrome recovery hooks, LPO, (MW7) Allison 1000 6-speed automatic transmission (Includes (DQS) outside memory equipped heated power-adjustable vertical trailering mirrors.), MIRRORS, CHROME, OUTSIDE HEATED POWER-ADJUSTABLE VERTICAL TRAILERING, MEMORY-EQUIPPED, UPPER GLASS, POWER-FOLDING AND MANUAL EXTENDING Includes integrated turn signal indicators, consisting of 51 square inch flat mirror surface positioned over a 24.5 square inch convex mirror surface with a common head and lower convex spotter glass (convex glass is not heated and not power-adjustable) and addition of auxiliary cargo lamp for backing up (helps to see trailer when backing up with a trailer) and amber auxiliary clearance lamp, LPO, WHEEL LOCKS, SET OF 4, LPO, CHROME RECOVERY HOOKS, LPO, ALL-WEATHER FLOOR LINER, LICENSE PLATE KIT, FRONT, LAMPS, SMOKED AMBER ROOF MARKER, JET BLACK, PERFORATED LEATHER-APPOINTED SEAT TRIM, HILL DESCENT CONTROL, GVWR, 10,000 LBS. (4536 KG), EXHAUST BRAKE, 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 (K40) exhaust brake, capped fuel fill and (K05) engine block heater., ENGINE BLOCK HEATER, DENALI PREFERRED EQUIPMENT GROUP Includes Standard Equipment, AUDIO SYSTEM, 8' DIAGONAL COLOR TOUCH SCREEN NAVIGATION WITH GMC INFOTAINMENT SYSTEM, AM/FM/SIRIUSXM, HD RADIO with USB ports, auxiliary jack, Bluetooth streaming audio for music an