4.5-Inch Lift Kit with Vertex Shocks for F-350 Super Duty 4WD with Front CV Drive Shaft
- Fits 2017-2022 Ford F-350 Super Duty 4WD, XL through Limited — diesel and dual rear wheel only
- Does not fit gas engines, single rear wheel trucks, manual shift transfer cases, Tremor Factory Trim Package, or 2020 models with the 10-speed transmission
- Kit contents: 2x Vertex 2.5 front shocks, 2x Vertex 2.5 rear shocks, coil, fabricated block and 4.5-inch U-bolt kit, front CV driveshaft
- Radius arm drop brackets included to reset caster; bolt-on installation
- Rear wheels may require dually wheel spacers
- Downloadable installation guide available — shipping weight: 260.3 lb
The Trail Fortress check
Will it fit your truck?
✓ Fits
✕ Does not fit
- Gas engine models
- Single rear wheel models
- Manual shift transfer cases 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 55951 is a 4.5-inch lift kit for 2017-2022 Ford F-350 Super Duty 4WD models, built around Vertex 2.5 shocks front and rear. It is a diesel, dual-rear-wheel application only: it does not fit gas engines, single rear wheel trucks, manual shift transfer cases, 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-350 Super Duty 4WD covers XL, XLT, Lariat, King Ranch, Platinum, and Limited trims in diesel, dual-rear-wheel form. The box pairs two Vertex 2.5 front and two Vertex 2.5 rear shocks with a coil, a fabricated block and 4.5-inch U-bolt kit, and a front CV driveshaft. Radius arm drop brackets set caster back where the factory geometry expects it, and installation is bolt-on. Rear wheels may need dually wheel spacers. Check the exclusion list, then pull the downloadable Rough Country installation guide before you start.
What’s in the box
Kit contents
- 1× Coil 5d 9297
- 1× Kit Box 1504991
- 1× Drw Block U-Bolt 4.5in Kit 55900BOX1
- 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 55951 kit fits the vehicles shown in the fitment section above.
Specifications
Specs
| Brand | Rough Country |
| Part number | 55951 |
| UPC / GTIN | 00843030191597 |
| Lift height | 4.5 in |
| Shock package | Vertex series |
| Shipping weight | 260.3 lb |
| Country of origin | TH |
| Category | Suspension & Lift Kits › Lift Kits |
| Installation guide | Downloadable PDF |
Why buy here