Rough Country's 4.5-inch suspension lift kit gives your 2017-2022 F-350 Super Duty Diesel Dually 4WD the clearance and stance to run tires up to 37 inches while preserving a composed, daily-drivable ride. Every component needed for the conversion ships in a single kit, so there are no sourcing headaches and no piecemeal assembly.
Lifted coil springs and fabricated rear blocks work together. The front lifted coil springs raise the nose while radius arm drop brackets restore proper caster geometry, keeping steering feel and drivability in line with factory expectations. At the rear, heavy-duty fabricated anti-wrap blocks replace cast units for greater strength and longevity, resisting axle wrap under hard acceleration and towing loads.
Shock absorber choice tailors the kit to your use case. Rough Country offers this kit with a choice of N3, M1 Monotube, V2 Monotube, or Vertex Adjustable Reservoir shocks, each application-valved for the F-350 platform. Whether the truck sees paved highways, work sites, or off-road trails, there is an option matched to that duty cycle. An optional front driveshaft upgrade is also available to address driveline angles introduced by the lift.
Installation stays practical with a bolt-on design. The hardware fits existing mounting locations, so the job does not require cutting, welding, or custom fabrication. The result is increased ground clearance and a leveled front-to-rear stance without sacrificing the truck's core utility.
Product Benefits
- 4.5-Inch Lift: Adds significant ground clearance and supports tires up to 37 inches.
- Radius Arm Drop Brackets: Restore factory caster angle for proper handling and tire wear.
- Fabricated Anti-Wrap Rear Blocks: Stronger than cast blocks and resistant to axle wrap under load.
- Multiple Shock Options: Choose from N3, M1 Monotube, V2 Monotube, or Vertex Reservoir shocks to match your driving demands.
- Optional Front Driveshaft: Available as an add-on to maintain driveline integrity at the lifted height.
- Levels the Stance: Brings the front ride height in line with the rear for a clean, even profile.
- Bolt-On Installation: No cutting or welding required; fits existing mounting points.
- Lifetime Replacement Warranty: Backed by Rough Country's lifetime replacement guarantee.
Note: Fits 2017-2022 F-350 Super Duty 4WD Diesel Dually models only. Does not fit gas engine models. Does not fit single rear wheel (SRW) models. Rear wheels may require dually wheel spacers. Does not fit models with manual shift transfer cases. Does not fit models equipped with the Tremor Factory Trim Package. Does not fit 2020 models with the 10-speed transmission.
About Rough Country: Rough Country designs and manufactures suspension lift kits, leveling kits, and off-road accessories for trucks and SUVs. The brand focuses on delivering complete, engineered solutions that combine fitment-specific hardware with straightforward installation, backed by a lifetime replacement warranty on their products.
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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 |
