Development
The M656 vehicles evolved from the XM543E2 program. The testing program ended in 1964.Variants
* XM656- Prototype M656 * XM757- Prototype M757 * XM791- Prototype M791 * M656- Cargo version used to carry the Pershing 1a missile Programmer Test Station and Power Station * M757- Tractor used to tow M790 Pershing 1a missile erector launcher * M791- Van version used for the Pershing 1a Battery Control CentralReferences
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