6-Inch Coilover Conversion Lift Kit for Super Duty 4WD (2017–2022)
- Fits 2017–2022 Ford F-250 and F-350 Super Duty 4WD, XL through Limited — diesel engines only
- Front coilover conversion: Vertex 2.5 adjustable left and right units for the 4.5-inch to 6-inch range
- Rear pairs Vertex 2.5 reservoir shocks with a fabricated 4.5-inch block and U-bolt kit
- Does not fit gas engines, dually models, manual-shift transfer cases, or the Tremor Factory Trim Package
- 10-speed transmission models require the dial pin to be removed; downloadable installation guide available
The Trail Fortress check
Will it fit your truck?
✓ Fits
✕ Does not fit
- Gas engine models
- Manual shift transfer cases Does NOT fit dually models
Models equipped with a 10-speed transmission must remove dial pin. New fabricated lift block replaces the factory equipped lift block. Does NOT work on models equipped with Tremor Factory Trim Package. Fitment on this page is based on the manufacturer’s application data.
About this kit
6-Inch Coilover Conversion Lift Kit, fitment-checked
Rough Country 50757 converts the front of a 2017–2022 Ford F-250 or F-350 Super Duty 4WD to Vertex 2.5 adjustable coilovers at 6 inches of lift. Diesel engines only — gas models, dually models, manual-shift transfer cases, and trucks with the Tremor Factory Trim Package are all outside this kit's fitment.
Coilover conversion is what sets this 6-inch lift kit for the 2017–2022 Ford Super Duty 4WD apart: left and right Vertex 2.5 adjustable front units valved across the 4.5-inch to 6-inch range replace the factory front setup, paired with Vertex 2.5 rear reservoir shocks. The box also carries matched upper and lower arm kits, a transfer case clocking kit, a universal U-bolt kit, and a fabricated 4.5-inch rear block that takes over from the factory block. Fitment covers F-250 and F-350 trims from XL to Limited. On 10-speed transmission trucks the dial pin comes out during the build.
What’s in the box
Kit contents
- 1× Univ. 3 4 X 4 1 X 1 2in U-Bolt Kit 7673
- 1× Transfer Case Clocking Kit 55003
- 2× Vertex 2.5 RR 6 In 695805
- 1× 6" Kit Box 50010991
- 1× 56020 Box Kit 1560BOX1
- 1× 4.5-6in Up Arm Kit 1560BOX2
- 1× 4.5-6in Lower Arms 1560BOX3
- 1× 4.5 In Block U-Bolt Kit No Overloads 1563BOX4
- 1× Vertex 2.5 Adj FR Lh 4.5IN-6.IN 685042L
- 1× Vertex 2.5 Adj FR Rh 4.5IN-6.IN 685042R
Rough Country shares subassemblies across kits, so individual package labels can carry broader application ranges. The complete 50757 kit fits the vehicles shown in the fitment section above.
Specifications
Specs
| Brand | Rough Country |
| Part number | 50757 |
| UPC / GTIN | 00840269914577 |
| Lift height | 6 in |
| Shipping weight | 376 lb |
| Country of origin | TH |
| Category | Suspension & Lift Kits › Lift Kits |
| Installation guide | Downloadable PDF |
Why buy here