| M656 | |
| Type: | 5-ton 8x8 cargo truck |
| Manufacturer: | Ford |
| Production: | 1968–1969 |
| Assembly: |  United States |
| Engine: | Continental LDS-465-2 multifuel engine |
| Related: | M757, M791 |
| Length: | 278 inches (M656 & M757), 314 inches (M791) |
The M656 is a 5-ton 8x8 U.S. military heavy cargo truck. It was a 5-ton truck in April 1966 and was used with the Pershing 1a missile.
The M656 vehicles evolved from the XM543E2 program. The testing program ended in 1964.