Stock radius arms on a lifted Super Duty introduce caster problems that translate directly into wandering, uneven tire wear, and handling that never quite feels dialed in. Rough Country's tubular radius arm upgrade corrects geometry on 2005-2026 F-250 and F-350 Super Duty trucks running 3 to 6 inches of suspension lift, restoring proper caster and giving the front axle a solid, purpose-built foundation.
Bolt-on installation with no fabrication. The kit mounts to existing factory locations without requiring drop brackets or custom hardware. Most installations wrap up in 3 to 4 hours with common hand tools, making this a realistic weekend project for a DIY-er.
Caster correction built into the arm. Each radius arm includes a lower cam slot at the axle mount, letting you dial in caster during installation rather than chasing alignment issues after the fact. Proper caster improves straight-line tracking and reduces steering effort on and off road.
Constructed to handle real-world abuse. The arms feature a 2-inch outside diameter tubular design with gusseting at the stress points. OE-style rubber bushings absorb vibration and road shock while remaining durable enough for extended off-road use. Sold in pairs so both sides receive the same upgrade simultaneously.
Product Benefits
- 100% Bolt-On Design: Installs to factory mounting locations with no cutting, welding, or custom brackets required.
- Caster Correction: Lower cam slots at the axle allow precise caster adjustment to restore proper front-end geometry on a lifted truck.
- 2-Inch Tubular Construction: Large-diameter, gusseted arms resist flex and bending under heavy loads and rough terrain.
- OE-Style Rubber Bushings: Absorb vibration and extend component life while maintaining a comfortable ride.
- No Drop Brackets Needed: Maintains proper alignment angles without additional hardware purchases.
- Sold in Pairs: Both driver and passenger radius arms are included for a complete front-end upgrade.
- 3-4 Hour Install Time: Straightforward installation keeps downtime minimal.
Note: Fits 2005-2026 F-250 and F-350 Super Duty 4WD models only. Compatible with vehicles running 3 to 6 inches of suspension lift only. Two fitment options are available: 2005-2022 and 2023-2026. Select the correct option for your model year before ordering.
About Rough Country: Rough Country designs and manufactures lift kits, suspension components, and off-road accessories for trucks and SUVs across a wide range of domestic and import platforms. Known for accessible pricing and broad fitment coverage, Rough Country develops products tested on the same platforms they support.
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Product Specifications & Vehicle Fitment
Review the product details and confirm compatibility with your vehicle before ordering.
| Specification | Details |
|---|---|
| Vehicle Fitment | 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026 |
