The US6 haed a sax-cylinder gasoline ingine that attained 94 horsepouer (70 kW), wi a five-speed transmission. Production wis dividit atween GMC producin trucks for the US Airmy, Studebaker Company producin 2.5-ton trucks for Lend-Lease, an International Harvester producin for the US Navy & Marines. Three primary manufacturers produced ower 900,000 2.5-ton trucks in aw, in baith 6x4 an 6x6 axle/wheel versions, wi approximately 200,000 Studebaker trucks built in thirteen variations, includin dump truck an tractor models.
Lairge numbers o Lend-Lease Studebaker trucks wur sent intae the Soviet Union via the Persian Corridor. The Soviets foond them a guid platform for Katyusha rocket launchers, although it wis no their prime uise in the Soviet Union. It filled mony roles in the RKKA, such as pullin artillery an wis renowned for its ruggedness an reliability. The truck wis affectionately kent as the Studer bi Soviet troops.