6-Inch Lift Kit with M1 Shocks for 2017-2022 Ford Super Duty 4WD for Trucks without Overloads
- Fits listed 2017-2022 Ford F-250 and F-350 Super Duty 4WD trims — check every exclusion before ordering
- Excludes dually, gas engine, manual-shift transfer case, 4 in rear axle tube, factory contact overload spring, and Tremor trucks
- Kit contents: 6 inch coil box, 4.5 in block and U-bolt kit, transfer case clocking kit, two M1 monotube shock pairs
- Bolt-on install with radius arm drop brackets for proper caster; downloadable installation guide available
The Trail Fortress check
Will it fit your truck?
✓ Fits
✕ Does not fit
- Dually models
- Manual shift transfer cases Does NOT fit gas engine models
- Models with 4" rear axle tube Does NOT fit models equipped with rear factory contact overload springs Does NOT work on models equipped with Tremor Factory Trim Package
Does NOT F-350 models. Fitment on this page is based on the manufacturer’s application data.
About this kit
6-Inch Lift Kit with M1 Shocks for 2017-2022 Ford Super Duty 4WD, fitment-checked
Rough Country 50440 is a 6-inch lift kit for 2017-2022 Ford Super Duty 4WD trucks, built around two pairs of M1 monotube shocks, front coils, a 4.5 in rear block and U-bolt set, and a transfer case clocking kit. It does not fit dually trucks, gas engines, manual-shift transfer cases, factory contact overload springs, a 4 in rear axle tube, or the Tremor package.
This 6-inch lift kit for the 2017-2022 Ford Super Duty 4WD ships as a kit box with a 6 inch coil box, a 4.5 in block and U-bolt kit without overloads, a transfer case clocking kit, and two M1 monotube shock pairs. Radius arm drop brackets keep caster set close to factory so steering behavior stays predictable, and the rear blocks are fabricated with anti-axle-wrap geometry. Read the exclusion list closely: the feed notes also flag F-350 models even though F-350 rows appear in the fitment table, so confirm your configuration first.
What’s in the box
Kit contents
- 1× Kit Box 1504991
- 1× 4.5 In Block U-Bolt Kit No Overloads 1563BOX4
- 1× Transfer Case Clocking Kit 55003
- 1× M1 MONOTUBE SHOCK PAIR 770754P
- 1× M1 MONOTUBE SHOCK PAIR 770805P
- 1× 6 Inch Coil Box 9296
Rough Country shares subassemblies across kits, so individual package labels can carry broader application ranges. The complete 50440 kit fits the vehicles shown in the fitment section above.
Specifications
Specs
| Brand | Rough Country |
| Part number | 50440 |
| UPC / GTIN | 00840269917585 |
| Lift height | 6 in |
| Shock package | M1 series |
| Shipping weight | 228.3 lb |
| Country of origin | US |
| Category | Suspension & Lift Kits › Lift Kits |
| Installation guide | Downloadable PDF |
Why buy here