2022 CHEVROLET SILVERADO 3500HD Crew Cab Long Bed 4WD High Country 6.6L DURAMAX TURBO-DIESEL 445HP. V8 ENGIN; ALLISON 10 SPD. AUTO TRANS. ? Heavy-duty 720 cold-cranking amps battery, 80 Amp-hr Maintenance-free with rundown protection and retained accessory power ? Capless fuel fill, Creates a tight seal around the fuel-pump nozzle when the nozzle is fully inserted Requires gasoline engine ? External auxiliary transmission oil cooler, Heavy-duty air-to-oil cooler Helps provides optimal transmission performance even when operating under a heavy load or towing a trailer ? Skid plates, Help protect the front underbody, oil pan, differential case and transfer case May require additional optional equipment ? 6-speed, heavy-duty, electronically controlled automatic transmission, Overdrive gear for smooth, efficient operation Auto Grade Braking that automatically downshifts when needed to enable engine braking, helping to slow the vehicle on downhill grades and reduce brake wear (operates in Tow/Haul mode) ? Air filtration monitoring, Alerts the driver when the engine air filter needs replacement ? Brake pad wear indicator ? 3.73 rear axle ratio, Requires a gas engine ? Suspension Package, Designed to help maintain handling and ride quality while towing a trailer or carrying a load ? 3.42 rear axle ratio, Requires a diesel engine ? Integrated trailer brake controller, Integrated with the antilock brake system (ABS) Helps provide measured brake force signaling to electric-controlled trailer brake systems Trailer gain and output are displayed in the Driver Information Center ? Engine block heater, Helps ease cold weather starts Heats the engine and engine block fluids Plug is conveniently located on driver's side lower fascia ? Autotrac? 2-speed transfer case with push button controls, 4-button control 2WD, Auto, 4WD, 4WD LO 2WD High for most on-road and highway situations 4WD High for snowy or wet roads when added traction is needed 4WD Low for deep sand, mud or snow to provide maximum torque to all 4 wheels When in AUTO mode, remains in 2WD mode until the system detects wheel slippage Automatically engages 4WD until traction is regained Neutral ONLY used for towing vehicle (Dinghy tow capability)- allows vehicle to roll freely May require additional optional equipment ? 170-amp alternator ? 4-wheel antilock disc brakes, Help reduce wheel lockup and maintain steering control during hard braking on most slippery surfaces DuraLife? brake rotors feature a hardened surface to reduce corrosion and provide quieter braking with less vibration. DuraLife? rotors are hardened and strengthened during the manufacturing process Brake system features a corrosion-fighting process called Ferritic Nitro-Carburizing (FNC) which can double rotor life expectancy and reduce or minimize rust over non-FNC coated rotors ? External engine oil cooler, Heavy-duty air-to-oil cooler Helps extend engine oil life under heavy loads ? Durabed, Roll-formed high-strength steel 12 standard cargo tie-downs CornerStep Rear Bumper ? 14,000 lbs. GVWR, When properly equipped; includes weight of vehicle, passengers, cargo and equipment ? 220-amp alternator, May require additional optional equipment ? Heavy-Duty Air Filter, Thick construction helps to trap more dirt before it can enter the air intake ? Automatic locking rear differential, When the differential senses a significant difference in wheel speed, it locks to turn both rear wheels in unison for added traction The Eaton? Locker senses a difference in wheel speed of approximately 100 rpm ? Allison? 10-speed automatic transmission, Electronically controlled with overdrive for smooth-shifting performance Tow/Haul mode that reduces shift cycling for better control and improved cooling when towing or hauling heavy loads Auto Grade Braking that automatically downshifts when needed to enable engine braking, helping to slow the vehicle on downhill grades and reduce brake wear (operates in Tow/Haul mode) May require additional optional equipment ? 6.6L Duramax Turbo-Diesel V8 engine, 445 hp [332 kW] @ 2800 rpm 910 b-ft. of torque [1220 Nm] @ 1600 rpm 3.42 rear axle ratio Exhaust brake Engine block heater Capped fuel fill Winter grille cover Paired with an Allison? 10-speed automatic transmission Diesel Exhaust Fluid (DEF) fill located in fuel door Engine after run feature for cooling performance May require additional optional equipment ? Digital Variable Steering Assist, This system automatically adjusts steering based on speed, road conditions, and other inputs to help reduce driver fatigue ? Chrome recovery hooks, Two front frame-mounted1 ? Fully boxed frame, Hydroformed front section High-strength steel ? Diesel exhaust brake, Reduces the amount of conventional braking needed while towing a heavy trailer or driving downhill Uses the variable vanes in the turbocharger to smoothly and quietly create additional back pressure in the engine to help slow the vehicle Works with the transmission's Tow/Haul mode and Auto Grade Braking to help the driver maintain the desired speed even on long, steep downgrades Switch activated May require additional optional equipment