Rough Country's 6-inch Coilover Conversion Lift Kit transforms your 2017-2022 F-250 or F-350 Super Duty diesel into a capable, trail-ready hauler without gutting ride quality. The kit replaces the factory independent coil and shock setup with a full coilover conversion, adding serious ground clearance and the ability to run up to 37-inch tires. Multiple configuration options let you tailor the kit to your axle size, overload spring setup, shock preference, and driveshaft needs before the first bolt is turned.
Geometry-correct radius arm drop brackets. Maintaining proper suspension angles is the most critical factor in preserving factory-like handling after a lift. Rough Country's radius arm drop brackets bolt directly to the factory mounts, keeping caster within spec and eliminating the vague steering and accelerated wear that come with poorly angled arms.
Vertex 2.5-inch coilovers with external reservoir. The heart of the kit is Rough Country's Vertex monotube coilover, built around a 2.5-inch piston and pressurized with nitrogen. An external reservoir increases oil capacity by 56 percent compared to a standard reservoir shock, which translates to better damping consistency under sustained off-road use or heavy towing. Eight stages of rebound adjustment let you dial in the ride for street, trail, or loaded towing duty. For buyers who want a proven performer without the reservoir, the kit is also available with Rough Country's V2 monotube shocks.
Fabricated rear blocks with anti-axle-wrap design. The rear of the kit uses fabricated steel blocks, which outlast cast alternatives under repeated load cycles. The anti-axle-wrap geometry keeps the axle from rotating under hard acceleration, a common failure point with basic lift blocks that ruins the ride quality the front coilovers work to preserve.
Product Benefits
- 6 Inches of Lift: Clears tires up to 37 inches in diameter on the 2017-2022 Super Duty platform.
- Vertex Coilover Option: 2.5-inch monotube piston with external reservoir and 8-stage rebound adjustment.
- V2 Monotube Option: Available for buyers who prefer a proven non-reservoir shock setup.
- Radius Arm Drop Brackets: Bolt to factory mounts and restore correct caster for predictable steering.
- Fabricated Anti-Axle-Wrap Blocks: Stronger than cast and designed to prevent axle rotation under load.
- Multiple Config Options: Choose axle diameter fitment, overload spring compatibility, shock type, and optional front driveshaft.
- Limited Lifetime Replacement Warranty: Covers manufacturer defects in structure and workmanship from the date of purchase.
Note: Fits 2017-2022 4WD F-250 Super Duty and F-350 Super Duty diesel models only. Does NOT fit gas engine models. Does NOT fit dually models. Does NOT fit manual shift transfer cases. Does NOT work on models equipped with Tremor Factory Trim Package.
About Rough Country: Rough Country designs and manufactures suspension lift kits, leveling kits, and accessories for trucks and off-road vehicles. The brand focuses on delivering engineered solutions that combine meaningful lift height, durable hardware, and straightforward installation across a wide range of domestic and import platforms.
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Product Specifications & Vehicle Fitment
Review the product details and confirm compatibility with your vehicle before ordering.
| Specification | Details |
|---|---|
| Vehicle Fitment | 2017, 2018, 2019, 2020, 2021, 2022 |
