M1 Monotube Rear Shocks for 1977–1979 Ford F-250 4WD
- Fits 1977–1979 Ford F-250 4WD — check your submodel against the fitment section
- Sold as a set: 1x M1 Monotube Shock Pair (rear application)
- 46mm monotube design with digressive valving; 18mm case-hardened, chromed rod
- Zinc-plated body and vulcanized natural rubber bushings
- Install time listed at 1-2 hours; shipping weight 12.16 lb
- Covered by a 3 Year Limited Warranty
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About this kit
M1 Monotube Rear Shocks, fitment-checked
Rough Country 770740_I is a pair of M1 monotube rear shocks for 1977–1979 Ford F-250 4WD trucks. The kit ships as 1x M1 Monotube Shock Pair, built around a 46mm monotube body with digressive valving and an 18mm chromed rod. Rough Country lists install time at 1-2 hours and covers this part under a 3 Year Limited Warranty.
These M1 monotube rear shocks fit the 1977–1979 Ford F-250 4WD, including Base, Custom, Northland, Ranger, Ranger Lariat, Ranger XLT, and XLT submodels shown in the fitment section. The 2-inch seamless extruded body houses a 46mm digressive piston with self-adjusting deflective-disc rebound and compression damping, so valving reacts as the surface changes rather than staying fixed. The 18mm rod is centerless-ground, case-hardened, chromed, and polished, and the body is zinc plated against road salt and grit. Vulcanized natural rubber bushings handle the mounting ends. Confirm your mount style before ordering and plan on roughly 1-2 hours at the rear axle.
What’s in the box
Kit contents
- 1× M1 MONOTUBE SHOCK PAIR 770740P
Rough Country shares subassemblies across kits, so individual package labels can carry broader application ranges. The complete 770740_I kit fits the vehicles shown in the fitment section above.
Specifications
Specs
| Brand | Rough Country |
| Part number | 770740_I |
| UPC / GTIN | 00840269907388 |
| Shock package | M1 series |
| Shipping weight | 12.16 lb |
| Warranty | 3 Year Limited Warranty |
| Country of origin | CN |
| Category | Suspension & Lift Kits › Shocks & Struts |
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