The M35 2½-ton cargo truck is a long-lived 2½-ton 6x6 cargo truck initially used by the United States Army and subsequently utilized by many nations around the Engine : REO OA; hp (95 kW). These late "M" series trucks, with 4 to 6 wheel drive, are military trucks which we offer for sale at a fraction of new truck cost. Trucks are reconditioned in our. Find great deals on eBay for Military Truck in Collectible Miscellaneous Surplus Military Items. Shop with confidence.