Technical bulletins.. ORD FE44. Truck, 4-to 5-ton, 4X4, C. O. E. (autocar U-7144-T), 5-to 6-ton, 4x4, C. O. E. (autocar U-8144 and TU-8144), 6-ton, 6X6, C. O. E. (White 444), elimination of radiator failures due to improper location of top radiator support; June 4, 1945.