This is a 2006 GMC 3500 Sierra Extended Cab PU with the following features: 6.0L EFI Will operate on gas or propane. Automatic with overdrive and tow/haul mode AM/FM Radio Air Conditioning Power steering & 4-wheel disk brakes HD brake system 9,900 Lbs 4:10 rear axle Posi traction-limited slip rear end Trailer provision special equipment H.O. Chassis package-high payload firm ride Block heater Line-X spray on truck bed liner EZ Dumper hydraulic lift dump box Operating on propane means much less operating costs. (Auto propane on Aug 18/24 is $1.15/ liter