DURAMAX!! DUALLY!! CLEAN CARFAX!! Take A Look At This 2015 GMC Sierra 3500HD Denali Crew Cab Dually With Allison Transmission. Maroon With Gray Leather Heated And Cooled Seats. Standout Features Like Backup Camera, Remote Starter, Sunroof, Navigation and Heated Steering Wheel and Mirrors. Also Includes CD Player, Portable Audio Connection, Power Seats, Premium Wheels, Traction Control, Power Steering, Running Boards, Alloy Wheels, Bedliner, Keyless Entry, Power Locks and Windows, Rear Window Defroster, Tilt Wheel, Trailer Hitch, Parking Distance Control, Anti Lock Brakes, Bluetooth, Cruise Control, Power Mirrors, Premium Audio, Satellite Radio, Steering Wheel Control, Tinted Glass, memory Seating, Airbags and Adjustable Pedals. 4X4.