CCKW ENGINEERING

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Flawless, the military got their money's worth along with exactly what they paid for.
The CCKW was not a throw away truck, they lasted and lasted, some serving 60 years with evidence that the Army ordered parts for same as late as 1989.

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I have removed virtually every part bolted to my 1st series 1941 SWB chassis except the rear spring seats and have not found one stripped thread, loose bolt , elongated hole, loose rivet, sign of chafing, previous repair, or twist in the chassis.

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The CCKW, in its original configuration would serve the military for over 50 years. The key to its longevity was military maintenance and parts support.

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There is a reason that GMC used the Rear Inner/Outer wheel nuts on the Front Axles, as there were times when it was necessary to install extra wheels to the front for added flotation, and to enable traction devices to be added to the front. For the discriminating collector, it is a familiar feature that adds to the character of the CCKW.

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Remember, the purpose of a shock absorber is to control spring rebound and cushion the compression stroke.

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Has anyone noticed the excellent workmanship and welding on the WWII CCKW?
We often hear the term "close enough for government work" uttered, but in all reality the workmanship was precise and excellent, the spare parts always fit.

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The CCKWs were driven over tortous test courses at Camp Holabird and Aberdeen Proving Ground. They were required to endure the test courses for a set number of miles with no failures, no cracked sheet metal (fenders) and nothing shaking loose, not even the exhaust system.
There is talk about the poory designed factory exhaust system installation not staying in place on restored trucks, they are in the minority and have locally bent exhaust pipes, substitute mufflers and non standard hangers.

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And there were upgrades, for example, the Cast Iron Carburetor which was more friendly to rough off-road driving.

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Note the rugged front bumper used on the CCKW with winch.

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GMC did not miss a thing, even the Brake Hoses have GM-2147636 Suspension Springs for the Brake Hoses. There are 6 of them, located between the Fender Aprons and Backing Plates at the front, the Chassis and the Backing Plates at the rear.