6-Inch Lift Kit with Vertex 2.5 Coilovers for F-250/F-350 4WD
- Fits 2017-2022 Ford F-250 and F-350 Super Duty 4WD in XL, XLT, Lariat, King Ranch, Platinum, and Limited trims
- Vertex 2.5 adjustable front coilovers, left and right, covering 4.5 in to 6 in of lift
- Rear setup uses a 6.5 in fabricated anti-axle-wrap block with U-bolts in place of the factory block
- Not for gas engine trucks, manual shift transfer cases, dually models, or the Tremor Factory Trim Package
- 10-speed transmission trucks require dial pin removal — downloadable installation guide available
The Trail Fortress check
Will it fit your truck?
✓ Fits
✕ Does not fit
- Gas engine models
- Manual shift transfer cases
- 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 Lift Kit with Vertex 2.5 Coilovers, fitment-checked
Rough Country 55458 lifts the 2017-2022 Ford F-250 and F-350 Super Duty 4WD by 6 inches using adjustable Vertex 2.5 front coilovers and a 6.5 in fabricated rear block. Diesel only: gas engine trucks, manual shift transfer cases, dually models, and Tremor package trucks are not covered. Shipping weight: 331.0 lb.
A 6-inch lift kit for the 2017-2022 Ford F-250 and F-350 Super Duty 4WD, built around a 6.5 in fabricated rear block with an anti-axle-wrap design that replaces the factory block and holds stock ride quality. Up front sit left and right Vertex 2.5 adjustable coilovers rated for 4.5 in to 6 in of lift, joined by two radius arm upgrade boxes, a radius arm kit, a transfer case clocking kit, a V2 monotube shock pair, and U-bolt hardware. Trucks with the 10-speed transmission need the dial pin removed. A downloadable installation guide covers both kit and coilover steps.
What’s in the box
Kit contents
- 1× Univ. 3 4 X 4 1 X 1 2in U-Bolt Kit 7675
- 1× Transfer Case Clocking Kit 55003
- 1× V2 MONOTUBE SHOCK PAIR 760805-2
- 1× 6" Kit Box 50010991
- 1× 6.5 In Block U-Bolt Kitoverloads 1550BOX2
- 1× Radius Arm Kit Box 512BOX1
- 1× Vertex 2.5 Adj FR Lh 4.5IN-6.IN 685042L
- 1× Vertex 2.5 Adj FR Rh 4.5IN-6.IN 685042R
- 1× Radius Arm Upgrade Box 53600991A
- 1× Radius Arm Upgrade Box 53600992A
Rough Country shares subassemblies across kits, so individual package labels can carry broader application ranges. The complete 55458 kit fits the vehicles shown in the fitment section above.
Specifications
Specs
| Brand | Rough Country |
| Part number | 55458 |
| UPC / GTIN | 00840269915024 |
| Lift height | 6 in |
| Shock package | Vertex series |
| Shipping weight | 331 lb |
| Country of origin | TH |
| Category | Suspension & Lift Kits › Lift Kits |
| Installation guide | Downloadable PDF |
Why buy here