Fresh Oil Change, Vortec 5.3L V8 SFI VVT Flex Fuel, 6-Speed Automatic, 4WD, ebony Cloth. CarTown - Used Car Giants! We have financing for all Customers!!! Odometer is 28912 miles below market average! 2010 GMC Sierra 1500 Onyx Black SLE Vortec 5.3L V8 SFI VVT Flex Fuel 6-Speed Automatic 4WD .Trust In a business with over 40 years experience. We also have the largest selection of used cars in North Louisiana.