1951 Chevy 3800 Flatbed Truck 1951 3800 Chevrolet Flatbed Truck Gas Add Comment 1951 Chevy 3800 Flatbed Truck, 1951 Chevy Model 3800 1 ton flatbed truck - 6 cylinder 4 speed transmission. Good condition. New brakes and water pump. Electrical converted to 12 volt.