1950. In 1950 the next generation of tactical trucks were being developed. Sizes were rationalized, with 1⁄4 and 3⁄4 -ton 4x4s and 2. 1⁄2, 5, and 10-ton 6x6s. Trucks were military standard designs, 6x6 trucksCustom common cabs and similar fender and hood styles. Cargo, dump, tractor, van, wrecker, and others.