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Those are actually M41s. They served alongside the M54s when the Army had the philosophy of having a rough terrain and a more highway capable truck (the M41 being the rough terrain version) at the same time. That philosophy changed, mostly due to cost, the Army (and other services) standardized on the M54, so the M41 had a relatively short production and service life.M54 5-Ton
The M41 is not a matter of philosophy but to meet the needs of the Korean War against the North Koreans and the 300,000 Chinese, the M41 was put into production before testing was completed and the design officially certified.Those are actually M41s. They served alongside the M54s when the Army had the philosophy of having a rough terrain and a more highway capable truck (the M41 being the rough terrain version) at the same time. That philosophy changed, mostly due to cost, the Army (and other services) standardized on the M54, so the M41 had a relatively short production and service life.
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