6-Inch Lift Kit with M1 Shocks for Ford Super Duty 4WD (2017–2022) for Trucks with Overloads
- Fits 2017–2022 Ford F-250 and F-350 Super Duty 4WD — King Ranch, Lariat, Limited, Platinum, XL, and XLT
- Diesel only, single rear wheel only: no gas engines, duallys, manual shift transfer cases, or Tremor Factory Trim Package
- Requires factory rear contact overload springs; not for trucks with a 3.5-inch rear axle tube
- Includes two M1 monotube shock pairs, 6-inch coils, 6.5-inch fabricated rear blocks, and a front CV driveshaft
- Radius arm drop brackets set proper caster — downloadable installation guide available
The Trail Fortress check
Will it fit your truck?
✓ Fits
✕ Does not fit
- Gas engine models
- Dually models
- Manual shift transfer cases Does NOT fit models with 3.5" rear axle tube ONLY fits models equipped with rear factory contact overload springs Does NOT work on models equipped with Tremor Factory Trim Package
About this kit
6-Inch Lift Kit with M1 Shocks for Ford Super Duty 4WD (2017–2022), fitment-checked
Rough Country 51741 is a 6-inch lift kit for 2017–2022 Ford F-250 and F-350 Super Duty 4WD trucks, built around two M1 monotube shock pairs, a front CV driveshaft, coil springs, and fabricated rear blocks with U-bolts. Diesel models with factory contact overload springs only — it does not cover gas engines, duallys, manual shift transfer cases, a 3.5-inch rear axle tube, or the Tremor trim package.
This 6-inch lift kit fits 2017–2022 Ford F-250 and F-350 Super Duty 4WD trucks from XL through Limited, including King Ranch, Lariat, Platinum, and XLT. The box holds a 6-inch coil package, a front CV driveshaft for diesel Super Duty applications, a 6.5-inch rear block and U-bolt set, an additional universal U-bolt kit, and two M1 monotube shock pairs. Radius arm drop brackets keep caster where the factory geometry wants it. Confirm your engine, rear axle tube, transfer case, and overload spring setup against the exclusion list first, then pull the downloadable Rough Country installation guide.
What’s in the box
Kit contents
- 1× Kit Box 1504991
- 1× 6.5 In Block U-Bolt Kitoverloads 1550BOX2
- 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 7675
- 1× 6 Inch Coil Box 9296
Rough Country shares subassemblies across kits, so individual package labels can carry broader application ranges. The complete 51741 kit fits the vehicles shown in the fitment section above.
Specifications
Specs
| Brand | Rough Country |
| Part number | 51741 |
| UPC / GTIN | 00840269917714 |
| Lift height | 6 in |
| Shock package | M1 series |
| Shipping weight | 265.3 lb |
| Country of origin | US |
| Category | Suspension & Lift Kits › Lift Kits |
| Installation guide | Downloadable PDF |
Why buy here