Rough Country's 6-inch Radius Arm Drop Suspension Lift Kit transforms the 2023-2026 F-250 and F-350 Super Duty Diesel into a capable, trail-ready hauler without sacrificing the ride quality you depend on for daily driving. Radius arm drop brackets reposition the factory geometry to maintain proper caster angles, so the truck steers and tracks the way it did from the factory, just six inches higher. The kit supports tire sizes up to 37 inches and arrives as a complete package with shocks, blocks, and all mounting hardware included.
Geometry-first engineering. Radius arm drop brackets bolt directly to the factory mounts, preserving the suspension angles that control caster and drivability. Correct caster is what separates a lift kit that drives well from one that wanders, fights the steering wheel, and accelerates tire wear.
Fabricated rear blocks built to last. The kit uses fabricated steel rear lift blocks rather than cast units. Fabricated blocks resist cracking under repeated load cycles and deliver a longer service life, especially on a diesel Super Duty that sees towing, hauling, or off-road use. The anti-axle-wrap design keeps the blocks from inducing the wheel hop and geometry shift that standard lift blocks can cause under hard acceleration.
Application-valved N3 shock absorbers included. Every kit ships with Rough Country's N3 series shocks, valved specifically for the weight and duty cycle of the Super Duty platform. Upgrade options include M1 monotube, V2 monotube, and Vertex reservoir shocks for more aggressive off-road tuning. A front driveshaft add-on is also available at the time of purchase.
Multiple configuration options. Choose between 3.5-inch and 4-inch axle fitment, with or without factory overload spring compatibility, and from four shock tiers to match your budget and intended use. This flexibility lets you build the kit around how the truck actually gets used.
Product Benefits
- 6-Inch Suspension Lift: Adds six inches of height and clears tires up to 37 inches in diameter.
- Radius Arm Drop Brackets: Maintain factory caster angles for predictable steering and handling after the lift.
- Fabricated Steel Rear Blocks: Stronger and longer-lasting than cast alternatives; anti-axle-wrap design preserves ride quality.
- Included N3 Shocks: Application-valved for balanced on- and off-road performance on the Super Duty platform.
- Configurable Options: Select axle size, overload spring fitment, shock tier, and optional front driveshaft.
- Factory Mount Integration: Brackets bolt to OEM locations for a cleaner install and repeatable fitment.
- Limited Lifetime Replacement Warranty: Covers structural and workmanship defects from the date of purchase.
Note: Fits Diesel models only. Does not fit gas engine models. Does not fit dually models. Does not fit models with manual shift transfer cases. Does not fit models equipped with the Tremor Factory Trim Package. Models equipped with a 10-speed transmission must remove the dial pin prior to installation. Installation requires cutting and drilling; estimated install time is 6-10 hours. To ensure proper functionality of your Advanced Drive Assistance System (ADAS) and Light Detection and Ranging (LiDar) systems, recalibration may be necessary to retain proper functionality of these features.
About Rough Country: Rough Country engineers suspension lift kits, leveling kits, and off-road accessories for domestic trucks and SUVs. The brand focuses on complete, bolt-in solutions that deliver meaningful lift without requiring extensive fabrication, backed by a lifetime replacement warranty on structural components.
WARNING: California Residents: Cancer and Reproductive Harm;
www.p65warnings.ca.gov
Product Specifications & Vehicle Fitment
Review the product details and confirm compatibility with your vehicle before ordering.
| Specification | Details |
|---|---|
| Vehicle Fitment | 2023, 2024, 2025, 2026 |
