6-Inch Lift Kit with Vertex Shocks for Ford Super Duty 4WD (2017-2022) with Front CV Drive Shaft
- Fits 2017-2022 Ford F-250 and F-350 Super Duty 4WD in the listed trims — check the exclusion list against your truck
- Kit contents: 6-inch coil box, 4.5-inch block and U-bolt kit with no overloads, front CV drive shaft, 2x Vertex 2.5 front and 2x Vertex 2.5 rear shocks
- Excludes dually, manual-shift transfer case, gas-engine, 4-inch rear axle tube, rear factory contact overload spring, and Tremor package trucks; F-350 models
- Radius arm drop brackets allow caster to be set correctly; fabricated anti-axle-wrap rear blocks
- Bolt-on installation — 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 Vertex Shocks, fitment-checked
Rough Country 50451 is a 6-inch lift kit for 2017-2022 Ford F-250 and F-350 Super Duty 4WD applications, built around four Vertex 2.5 shocks, a front CV drive shaft, a coil package, and a 4.5-inch block and U-bolt kit without overloads. Read the exclusion list closely before ordering — dually, gas-engine, and Tremor-package trucks are not covered.
This 6-inch lift kit for the 2017-2022 Ford Super Duty 4WD covers XL through Limited trims listed in the fitment section, and pairs front and rear Vertex 2.5 shocks with radius arm drop brackets that let caster be set back to factory specification. Fabricated rear blocks are designed to resist axle wrap and keep stock ride manners. It will not work on dually trucks, manual-shift transfer cases, gas engines, trucks with a 4-inch rear axle tube, rear factory contact overload springs, or the Tremor trim package, and the exclusion list also flags F-350 models — verify your configuration first. A downloadable installation guide is available.
What’s in the box
Kit contents
- 1× 6 Inch Coil Box 9296
- 1× 4.5 In Block U-Bolt Kit No Overloads 1563BOX4
- 1× Kit Box 1504991
- 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 50451 kit fits the vehicles shown in the fitment section above.
Specifications
Specs
| Brand | Rough Country |
| Part number | 50451 |
| UPC / GTIN | 00843030169701 |
| Lift height | 6 in |
| Shock package | Vertex series |
| Shipping weight | 275.83 lb |
| Country of origin | TH |
| Category | Suspension & Lift Kits › Lift Kits |
| Installation guide | Downloadable PDF |
Why buy here