1938 Dodge RE31 Truck and Tanker In 1928 the Dodge Brothers acquired a truck line from the Graham Brothers who had been using Dodge engines in their commercial vehicles since 1921. By 1930 a mere two years later, they had America's 4th largest selling truck, and found their corner of the market. This tractor with tanker trailer, is a very nicely restored example of an early commercial vehicle, ...