Allison 1000 6-Speed Automatic, 4WD, Jet Black Leather. Recent Arrival! Dark Slate Metallic 2019 GMC Sierra 3500HD Denali 4WD Allison 1000 6-Speed Automatic Duramax 6.6L V8 Turbodiesel Driver Alert Package (Forward Collision Alert and Lane Departure Warning System), Duramax Plus Package (Chrome Recovery Hooks), Gooseneck/5th Wheel Prep Package, Hitch Package (LPO), Preferred Equipment Group 5SA (110-Volt AC Power Outlet, 150 Amps Alternator, 8 Multi-Color Customizable Driver Display, Auto-Dimming Inside Rear-View Mirror, Chrome Bodyside Moldings, Chrome Door Handles, Chrome Power-Adjustable Heated Outside Mirrors, Color-Keyed Carpeted 1st & 2nd Row Floor Mats, Color-Keyed Carpeting Floor Covering, Deep-Tinted Glass, Driver & Front Passenger Visors, Dual-Zone Automatic Climate Control, Electric Rear-Window Defogger, Electronic Shift Transfer Case, EZ-Lift & Lower Tailgate, Front Body-Color Bumper, Front Frame-Mounted Black Recovery Hooks, Front Halogen Fog Lamps, GMC 4G LTE, GMC Connected Access, HD Radio, Heated & Ventilated Front Seating, Leather Wrapped Heated Steering Wheel, Manual Tilt-Wheel/Telescoping Steering Column, OnStar & GMC Connected Services Capable, Power Adjustable Pedals, Power Sliding Rear Window w/Defogger, Rear 60/40 Folding Bench Seat (Folds Up), Rear Body-Color Bumper w/Bumper CornerSteps, Rear Vision Camera, Remote Keyless Entry, Remote Locking Tailgate, Remote Vehicle Starter System, Single-Slot CD/MP3 Player, Steering Wheel Audio Controls, UltraSonic Front & Rear Park Assist, Unauthorized Entry Theft-Deterrent System, and Universal Home Remote), Standard Suspension Package, Trailering Equipment, Allison 1000 6-Speed Automatic, 4WD, Jet Black Leather, 3.73 Rear Axle Ratio, 4-Wheel Disc Brakes, 4.10 Rear Axle Ratio, 7 Speakers, ABS brakes, Adjustable pedals, Air Conditioning, All-Weather Floor Liner (LPO), Alloy wheels, AM/FM radio: SiriusXM, Apple CarPlay/Android Auto, Auto-dimming Rear-View mirror, Automatic temperature control, Bodyside moldings, Bose Speaker System, Brake assist, Bumpers: body-color, CD player, Compass, Delay-off headlights, Driver door bin, Driver vanity mirror, Dual front impact airbags, Dual front side impact airbags, Electronic Stability Control, Emergency communication system: OnStar and GMC connected services capable, Engine Block Heater, Exhaust Brake, Floor Mounted Console, Front anti-roll bar, Front Bucket Seats, Front Center Armrest, Front dual zone A/C, Front fog lights, Front Full Feature Bucket Seats, Front reading lights, Front wheel independe