This family of trucks was designed and produced in the early 1940s for the US Army as a basic 5,000 lb. (2.5 'short' or 2.3 metric) heavy duty truck. terrain and in all weather conditions. From the very beginning it was assumed that these types of cars would be simple in design and that their production would be mass production. During World War II, a total of over 700,000 trucks of this type were created, especially by GMC (CCKW model) and Studebaker. Many of these vehicles found their way to the USSR under the Lend-and-Lease program. The families of these trucks played a gigantic role in the logistics and transport of Allied and Soviet troops during World War II. After 1945, the M35 series trucks were introduced into service, which is also often included in the family 2 , 5 -ton, 6x6 truck.