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★★★★★ 4.9 (625 Google reviews) · Marietta shop · 📞 (678) 400-6467 · 🗺️ Get Directions · Live From The Shop
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Rough Country · Authorized Dealer

Radius Arm Upgrade | Ford F-250/f-350 Super Duty 4wd (2023-2026)

Part #: 43701AUPC: 840269951947Brand: Rough Country

$499.95

Price does not include installation.

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*Estimated lease-to-own payment. Final approval and terms are determined by the lender. See all financing options →

🛠️ Install available in Marietta, GA

Installed and serviced at Road Runner Wheels & Tires — 1585 Roswell Rd, Marietta, GA 30062. Call (678) 400-6467 to schedule.

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Call (678) 400-6467

Built for Ford F-250/F-350 Super Duty owners who lift their trucks and need radius arms engineered to match — Rough Country's tubular radius arm upgrade maintains proper front-end geometry after 3–6 inches of suspension lift, eliminating the need for drop brackets and keeping your handling dialed in without compromise.

Installed and serviced at Road Runner Wheels & Tires. Most suspension upgrades go in the same day. Call (678) 400-6467 to schedule.

What's included

  • Radius Arm Pass Upgrade Box — driver-side tubular radius arm with OE-style rubber bushings and adjustable alignment cam for caster tuning.
  • Radius Arm Dr Upgrade Box — passenger-side tubular radius arm with OE-style rubber bushings and adjustable alignment cam for caster tuning.

Important notes

  • These radius arms are engineered only for vehicles equipped with 3–6 inches of suspension lift. Do not install on stock-height or lightly-modified trucks.

Why customers pick this at Road Runner

  • 100% bolt-on installation with no cutting or welding required.
  • Massive 2-inch outside diameter tubular design delivers durability and an aggressive aftermarket look.
  • OE-style rubber bushings absorb vibration and road feedback for a smooth ride on any terrain.
  • Adjustable alignment cams let you dial in caster precisely — no drop brackets or additional brackets needed.
  • Professionally installed by technicians who work on F-250/F-350 Super Duties every week, with alignment performed in-house as part of the install.
  • Backed by Rough Country's lifetime warranty, honored locally at Road Runner.

Ready to build it? Call (678) 400-6467. Hablamos Español.

QtyPartPart #
1Radius Arm Pass Upgrade Box | Ford F-250/F-350 Super Duty 4WD (2023-2024)43701991A
1Radius Arm Dr Upgrade Box | Ford F-250/F-350 Super Duty 4WD (2023-2024)43701992A

Features

  • 100% bolt-on installation.
  • Equipped with OE-Style Rubber Bushings for longevity.
  • Maintains proper alignment without the need for additional drop brackets.
  • Tubular style design for the aftermarket look.
  • Massive 2-inch outside diameter.
  • Includes adjustable alignment cam at the axle for easy caster adjustment.
  • Sold in pairs.
YearsMakeModelDrive
2023-2024FordF-250 Super Duty Limited4WD
2023-2026FordF-250 Super Duty King Ranch4WD
2023-2026FordF-250 Super Duty Lariat4WD
2023-2026FordF-250 Super Duty Platinum4WD
2023-2026FordF-250 Super Duty XL4WD
2023-2026FordF-250 Super Duty XLT4WD
2023-2024FordF-350 Super Duty Limited4WD
2023-2026FordF-350 Super Duty King Ranch4WD
2023-2026FordF-350 Super Duty Lariat4WD
2023-2026FordF-350 Super Duty Platinum4WD
2023-2026FordF-350 Super Duty XL4WD
2023-2026FordF-350 Super Duty XLT4WD
  • Install time: 3-4 hours
ONLY fits models equipped with 3-6" of suspension lift.

Rough Country Lifetime Replacement Warranty covers all structural components against defects in materials and workmanship for the original purchaser's lifetime ownership of the vehicle.

3-Year Finish Warranty on all painted and powder-coated surfaces.

3-Year Shock Warranty on N3, M1, and Vertex shocks against leakage and structural failure.

Warranty service is handled by Rough Country directly — call (678) 400-6467 if you need help opening a warranty claim and we'll walk you through it.