4.5-Inch Lift Kit with M1 Shocks for Ford Super Duty 4WD
- Fits 2017-2022 Ford Super Duty 4WD in XL, XLT, Lariat, King Ranch, Platinum, and Limited trims — check exclusions below
- Kit contents: two M1 monotube shock pairs, front coils, fabricated block and 4.5-inch U-bolt kit, transfer case clocking kit
- Radius arm drop brackets set proper caster; fabricated rear blocks in place of cast
- Not for gas engine, dually, manual shift transfer case, Tremor Factory Trim Package, or 4-inch rear axle tube trucks
- Also excludes 2020 models with the 10-speed transmission
The Trail Fortress check
Will it fit your truck?
✓ Fits
✕ Does not fit
- F-350 models
- Gas engine models
- Manual shift transfer cases Does NOT fit dually models
- Models with 4" rear axle tube 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 55040 is a 4.5-inch lift kit for 2017-2022 Ford Super Duty 4WD trucks, built around two M1 monotube shock pairs, front coils, a fabricated block and U-bolt package, and a transfer case clocking kit. Read the exclusion list closely: gas engine, dually, manual shift transfer case, Tremor Factory Trim Package, and 4-inch rear axle tube trucks are all outside this application.
This 4.5-inch lift kit for the 2017-2022 Ford Super Duty 4WD is packaged with M1 monotube shock pairs front and rear, replacement front coils, fabricated rear blocks with a U-bolt kit, and a transfer case clocking kit. Radius arm drop brackets bring caster back into range so steering feel stays close to factory. Several configurations fall outside coverage, including gas engine trucks, duallys, manual shift transfer cases, Tremor Factory Trim Package models, 4-inch rear axle tubes, and 2020 trucks with the 10-speed transmission. Confirm your drivetrain and trim against the fitment section first. Shipping weight: 220 lb.
What’s in the box
Kit contents
- 1× Kit Box 1550BOX1
- 1× Block U-Bolt 4.5in Kit 1550BOX3
- 1× Transfer Case Clocking Kit 55003
- 1× M1 MONOTUBE SHOCK PAIR 770754P
- 1× M1 MONOTUBE SHOCK PAIR 770805P
- 1× Coil 5d 9297
Rough Country shares subassemblies across kits, so individual package labels can carry broader application ranges. The complete 55040 kit fits the vehicles shown in the fitment section above.
Specifications
Specs
| Brand | Rough Country |
| Part number | 55040 |
| UPC / GTIN | 00840269917912 |
| Lift height | 4.5 in |
| Shock package | M1 series |
| Shipping weight | 220 lb |
| Country of origin | US |
| Category | Suspension & Lift Kits › Lift Kits |
| Installation guide | Downloadable PDF |
Why buy here