1930 Mack AB Dump Truck As opposed to the AC, this AB model is rated at 5 tons, and shows a dump truck configuration. Consigner states that this truck is all original sheet metal and the truck is complete. A C type cab is seen, and pocket doors allow access to the cab. Unusual for C cabs, this truck has a windshield. Good black paint for the front, and red for the dump tray along with the original solid brass bulldog on the radiator cap.