At a demonstration today of the new “Mighty Mite” jeep, described as truck, utility, 1/4 ton, 4×4, the sandbag load shifted while the jeep was on an inclined bank, the vehicle overturned, but the … Quantico, Virginia. The M422 'Mighty Mite' is a lightweight ¼-ton 4x4 tactical truck, suitable for airlifting and manhandling. The M422 'Mighty Mite' is a light weight ¼-ton 4x4 tactical truck, suitable for airlifting and manhandling. Trucks – United States (Mighty Mite – Jeep type). The Mighty Mite The 1963 American Motors M422A1 is a military vehicle that shares a name with a firecracker. American Motors (AMC) built two main variants of the Mighty Mite, the M422 with a 65 inch wheelbase, and the M422A1 with a 71 inch wheelbase. From 1959 to 1962, the Mighty Mite was built by American Motors for the United States Marine Corps. The Mighty Mite.