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US 2 1/2-ton, 6x6 Trucks in WW II

World War II was the first war in which massive numbers of trucks completely changed the equations of mobility for warfare. The production capability of the U.S. automotive industry poured out hundreds of thousands of jeep, trucks and armored vehicles. This made it possible for the U.S. and its allies to overwhelm the Axis with men and supplies, moving forward at a rate never before possible.

A U.S. Ninth Army GMC CCKW truck, just after crossing the Rhine River, March 1945
A U.S. Ninth Army GMC CCKW truck, just after crossing the Rhine River, March 1945.

Today in WW II: 31 Oct 1940 End of Battle of Britain, Hitler's air war against London, other British cities, and the Royal Air Force [RAF].  More 
31 Oct 1941 Destroyer USS Reuben James [DD-245] on Lend-Lease convoy escort duty sunk by German submarine U-552 with the loss of 100 of her crew, the first US naval casualty in the yet undeclared war.
Visit the Olive-Drab.com World War II Timeline for day-by-day events 1939-1945! See also WW2 Books.

American 2 1/2-ton, 6x6 Trucks in World War II

Particularly in Europe, where the land warfare was most suitable for mobility, the ability to maneuver and supply by truck was a decisive advantage to the Allied armies in World War II. Although the German Army had pioneered mobile warfare in the late 1930s, they never became motorized to the extent of the Allies.

Closed cab CCKW on a street in Detroit, MI, April 1943
Closed cab CCKW on a street in Detroit, MI, April 1943. Truck registration number is USA 4134998.

Although many vehicles were in use in World War II, it was the 2 1/2 ton 6x6 (the "deuce and a half" or just "deuce") that bore most of the load. There were three main trucks in this category:

These trucks had many differences in details, but had the same function, general dimensions, and external appearance. More information on each truck is provided below on this page. Photographs are available in the Military Vehicle Charts at the linked pages for the individual trucks in the list just above.

Reo US-6 2 1/2 ton 6x6 (G-630)
Reo US-6 2 1/2 ton 6x6 (G-630)

Continued on WW II 2 1/2-ton, 6x6 Trucks Page 2.

Find additional photos and hi-res versions of World War II 2 1/2-ton cargo trucks at the Olive-Drab Military Mashup:

GMC CCKW 2 1/2-ton 6x6 truck used for spraying insecticide to kill mosquitoes carrying dengue fever, in the Waikiki area, Oahu, Hawaii, 15 August 1943. COL  George F. Unmacht, Department Chemical Officer, is overseeing this work by the Chemical Warfare Section.
CCKW 2 1/2-ton 6x6 trucks hauling Engineer bridging equipment in flooded areas of the Moselle River, circa November 1944.
A truck for the AAF, Italy, circa 1944. The Air Service Command, largest component of the AAF, operates its own convoys for the movement of supplies. Thousands of trucks are so employed, some companies trucking a million miles a year. Driving over the rugged terrain of Italy and Sicily has worn out many a hard-driven vehicle and constant replacements are made.  Twelve months from now this CCKW 2 1/2-ton truck will have carried bombs and other Air Force supplies 30,000 or 40,000 miles ... unless the war is over sooner.  The ability to carry on large scale industrial activity in a foreign theater is helping the Allies win the war.
A line of Republic P-47S refueling on an emergencylanding strip built in record time by 9th Air Force Engineers after the invasion Of France, June 1944.  Vehicle appears to be CCKW based Airfield Service truck (Truck, Oil Servicing, 660 Gal., 2 1/2-ton 6x6, L-2) towing a trailer.
Convoy of CCKW 2 1/2-ton 6x6 trucks make their way through flooded streets of a Belgian town, circa fall 1944.
US Army DUKW 2 1/2-ton amphibious trucks in San Francisco Bay for a War Bonds show, 21 February 1945.  Alcatraz Island visible at center right.

Recommended Books about WW II Military Cargo Trucks

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