GMC 1979 Used Manual Gasoline mileage: 298 KM For sale, a clean GMC on condition. Engine, gearbox, differential are in condition. AC is working and cold. Body is not without paint, original 350 engine with a 454 engine, 45/14 rear end. I guarantee the engine, chassis, and suspension are sound. Valid registration. Tanks are working. Odometer, cassette player with Bluetooth.