In 1939 Motor Rail introduced the Motor Rail Dumper - a 4-ton, 2-wheel-drive dump truck (running on tyres rather than rails). It again used a Dorman engine, and a variant of the Dixon-Abbot gearbox. At least one survives. According to a 1955 advert, the diesel engine dumper had a capacity of 3 cubic yards, and had six forward gears and two reverse. It would carry a load of 4 tons up a 1 in 5 gradient. It was available with front control (driver at the front facing forward), or rear control (driver looking over the load, and hence with rear wheel steering, as is common modern practice).