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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: 30 Aug 1941 German Lorenz SZ40 teleprinter operator sent a 4,000 character message twice, allowing British mathematician Bill Tutte and others at Bletchley Park to decipher the machine's coding mechanism.  More 
30 Aug 1942 Germany formally annexes Luxembourg to the German Reich, triggering a general strike the next day protesting German Army conscription.
30 Aug 1942 Battle of Alam el Halfa, between Rommel's German force and British Commenwealth troops under Montgomery, south of El Alamein, the end of last major Axis offensive of their Western Desert campaign [30 Aug-5 Sep].
30 Aug 1944 Last remnants of German forces retreat across the Seine River, bringing Operation Overlord to a successful conclusion.
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:

Temporary combat vehicle storage in G-25, Cheltenham, England. 15 February 1944. Appear to be GMC CCKW 2 1/2-ton trucks, various models. Courtesy U.S. Army Heritage and Education Center.
MAJGEN Harris M. McLasky, CG, 86th Div, foreground, inspects a CCKW 2 1/2-ton 6x6 truck and others filled with troops taken from trains at Braggs, OK, to be transported to their barracks at Camp Gruber, OK, 28 July 1945. On the left is MAJ S. J. Craig, executive officer.
Tenth Mountain Division Commander, GEN George P. Hays, using a DUKW 2 1/2-ton 6x6 amphibious truck as a stage to announce the final Allied victory over all German armies in Italy and southern Austria, in the city of Torbole, Italy, 3 May 1945.
Factory workers celebrate the roll-out of the last CCKW 2 1/2-ton 6x6 cargo truck produced by GMC at their plant in Pontiac, MI, May 1945.
GMC 2 1/2-ton 6x6 CCKW long wheel base cargo truck equipped with a Number 7 wrecker set frame and pulley, and a front-mounted winch, Holabird Quartermaster Depot, Baltimore,MD, 10 December 1941.
Heavy bombs are loaded by a crawler crane onto a wheeled trailer by Air Service Command soldiers in preparation for a 13th AAF bomber mission, Philippines, circa 1945.  Truck at right rear appears to be GMC CCKW 2 1/2-ton 6x6.

Recommended Books about WW II Military Cargo Trucks

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