4.5-Inch Lift Kit with Vertex Shocks for Ford Super Duty 4WD — Part 55051
- Fits listed 2017-2022 Ford Super Duty 4WD trims — confirm against the full exclusion list before ordering
- Kit contents: 2x Vertex 2.5 front and 2x Vertex 2.5 rear shocks, front CV driveshaft, coil, and fabricated block with 4.5-inch U-bolts
- Diesel only — gas engine, manual shift transfer case, dually, and Tremor Factory Trim Package trucks are excluded
- Also excluded: F-350 models, trucks with a 4-inch rear axle tube, and 2020 trucks with the 10-speed transmission
- Radius arm drop brackets included to reset caster for factory-style steering feel
- Downloadable installation guide available. Shipping weight: 265.48 lb
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 Vertex Shocks, fitment-checked
Rough Country 55051 is a 4.5-inch lift kit for compatible 2017-2022 Ford Super Duty 4WD trucks, built around four Vertex 2.5 shocks, a front CV driveshaft, a coil, and a fabricated block and U-bolt package. Diesel applications only: it does not fit gas engines, dually models, manual shift transfer cases, F-350 models, 4-inch rear axle 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 Super Duty 4WD covers XL, XLT, Lariat, King Ranch, Platinum, and Limited trims listed in the fitment section, and the exclusion list matters as much as the year range here. Radius arm drop brackets set caster back where the factory steering expects it, and the fabricated rear blocks ship with a 4.5-inch U-bolt kit. Read the diesel-only and dually restrictions closely, then pull the downloadable Rough Country installation guide before you start the job. Shipping weight is 265.48 lb.
What’s in the box
Kit contents
- 1× Coil 5d 9297
- 1× Kit Box 1550BOX1
- 1× Block U-Bolt 4.5in Kit 1550BOX3
- 1× CV Drive Shaft 5068.1
- 2× Vertex 2.5 FR 6 In 685754
- 2× Vertex 2.5 RR 6 In 695805
Rough Country shares subassemblies across kits, so individual package labels can carry broader application ranges. The complete 55051 kit fits the vehicles shown in the fitment section above.
Specifications
Specs
| Brand | Rough Country |
| Part number | 55051 |
| UPC / GTIN | 00843030169718 |
| Lift height | 4.5 in |
| Shock package | Vertex series |
| Shipping weight | 265.48 lb |
| Country of origin | TH |
| Category | Suspension & Lift Kits › Lift Kits |
| Installation guide | Downloadable PDF |
Why buy here