Dark Slate Metallic 2017 GMC Sierra 1500 RWD 6-Speed Automatic Electronic with Overdrive EcoTec3 5.3L V8 6-Speed Automatic Electronic with Overdrive, Dark Ash Seats With Jet Black Interior Accents Cloth. Happy Customers are our Business! Odometer is 19219 miles below market average! Serving Arklahoma since 1995.