4.5-Inch Lift Kit with M1 Shocks for Ford Super Duty 4WD (2017–2022)
- Fits 2017–2022 Ford F-250 and F-350 Super Duty 4WD diesel models — review every exclusion below
- Does not fit gas engine, dually, manual shift transfer case, 3.5-inch rear axle tube, or Tremor Factory Trim Package trucks; 2020 models with the 10-speed
- Kit contents: 5d coil springs, fabricated block and 4.5-inch U-bolt kit, universal U-bolt kit, front CV driveshaft (F-250/F-350 Super Duty 4WD 2017-2023
- Radius arm drop brackets included for correct caster after the lift
- Bolt-on installation — downloadable installation guide available
The Trail Fortress check
Will it fit your truck?
✓ Fits
✕ Does not fit
- Gas engine models
- Manual shift transfer cases Does NOT fit dually models
- Models with 3.5" rear axle tubes Does NOT work on models equipped with Tremor Factory Trim Package Does NOT fit 2020 models with 10-speed transmission
About this kit
4.5-Inch Lift Kit with M1 Shocks, fitment-checked
Rough Country 50641 is a 4.5-inch lift kit for 2017–2022 Ford F-250 and F-350 Super Duty 4WD models with a diesel engine. The kit pairs coil springs and fabricated rear blocks with two M1 monotube shock pairs and a front CV driveshaft. It does not fit gas engine models, dually models, manual shift transfer cases, axles with 3.5-inch rear tubes, Tremor Factory Trim Package trucks, or 2020 trucks with the 10-speed transmission.
This 4.5 inch lift kit for the 2017–2022 Ford F-250 and F-350 Super Duty 4WD covers XL, XLT, Lariat, King Ranch, Platinum, and Limited trims listed in the fitment section. Contents include coil springs, a fabricated block and 4.5-inch U-bolt kit, a universal U-bolt kit, a front CV driveshaft for diesel applications, and two M1 monotube shock pairs. Radius arm drop brackets let you set caster back where the factory geometry expects it, which keeps steering feel close to stock. Confirm engine, transfer case, axle, and rear-wheel configuration against the exclusion list, then pull the downloadable Rough Country installation guide before you start.
What’s in the box
Kit contents
- 1× Kit Box 1550BOX1
- 1× Block U-Bolt 4.5in Kit 1550BOX3
- 1× CV Drive Shaft 5068.1
- 1× M1 MONOTUBE SHOCK PAIR 770754P
- 1× M1 MONOTUBE SHOCK PAIR 770805P
- 1× Univ. 3 4 X 4 1 X 1 2in U-Bolt Kit 7673
- 1× Coil 5d 9297
Rough Country shares subassemblies across kits, so individual package labels can carry broader application ranges. The complete 50641 kit fits the vehicles shown in the fitment section above.
Specifications
Specs
| Brand | Rough Country |
| Part number | 50641 |
| UPC / GTIN | 00840269917615 |
| Lift height | 4.5 in |
| Shock package | M1 series |
| Shipping weight | 250 lb |
| Country of origin | US |
| Category | Suspension & Lift Kits › Lift Kits |
| Installation guide | Downloadable PDF |
Why buy here