Recent Arrival! Dark Sky Metallic 2020 GMC Sierra 3500HD SLT 4WD 10-Speed Automatic Duramax 6.6L V8 Turbodiesel 10-Speed Automatic, 4WD, Dark Walnut/Slate Leather, 10-Way Power Driver Seat Adjuster w/Lumbar, 10-Way Power Passenger Seat Adjuster w/Lumbar, 12-Volt Rear Auxiliary Power Outlet, 120-Volt Bed Mounted Power Outlet, 120-Volt Instrument Panel Power Outlet, 2 USB Ports Inside Console, 2-Speed Active Transfer Case, 220 Amp Alternator, 2nd Row Dual USB Charge-Only Ports, 4-Wheel Disc Brakes, 4.2'' Diagonal Color Display Driver Info Center, 4G LTE Wi-Fi Hotspot Capable, 6 Speakers, 6-Speaker Audio System Feature, 6'' Rectangular Chromed Tubular Assist Steps (LPO), ABS brakes, Air Conditioning, All-Weather Floor Liners (LPO), AM/FM radio: SiriusXM with 360L, Apple CarPlay/Android Auto, Auto-dimming door mirrors, Auto-dimming Rear-View mirror, Automatic temperature control, Bed View Camera, Brake assist, Bumpers: chrome, Chrome Surround Grille w/High Gloss Black Mesh, Compass, Compass Located In Instrument Cluster, Deep-Tinted Glass, Delay-off headlights, Driver door bin, Driver Memory, Driver vanity mirror, Dual front impact airbags, Dual front side impact airbags, Dual Heavy-Duty 70 Amp Battery, Electric Rear-Window Defogger, Electrical Lock Control Steering Column, Electronic Stability Control, Engine Block Heater, Exhaust Brake, Front 40/20/40 Split-Bench Seat w/Storage, Front anti-roll bar, Front Center Armrest w/Storage, Front dual zone A/C, Front fog lights, Front reading lights, Front wheel independent suspension, Fully automatic headlights, GMC Connected Access Capable, Gooseneck/5th Wheel Package, Gooseneck/5th Wheel Prep Package, HD Radio, Heated door mirrors, Heated Driver & Front Outboard Passenger Seats, Heated front seats, Heated steering wheel, Heavy-Duty 80 Amp Battery, Hitch Guidance w/Hitch View, Hitch Package (LPO), Illuminated entry, Integrated Trailer Brake Controller, Keyless Open & Start, LED Cargo Area Lighting, Low tire pressure warning,