In 1935 an agreement was reached between Mack Truck Company and the REO Motor Car Company that allowed Mack dealers to market smaller REO Speedwagon trucks at Mack dealerships. Mack was convinced it could sell a small Mack truck so REO agreed to build it at its assembly plant in Lansing, Michigan. The 1936 Mack Jr. pickup truck is a basic REO pickup with Mack Jr. identity.