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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

6 Inch Lift Kit | Gas | Radius Arm | M1 | Ford F-250/f-350 Super Duty (23-26)

Part #: 41640UPC: 840269950964Brand: Rough Country

$1,639.95

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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Built for Ford Super Duty owners who want serious ground clearance without sacrificing ride quality, this 6-inch radius arm lift kit raises your truck to new heights while preserving factory-like suspension geometry. You'll run 35"–37" tires, and the tubular radius arms maintain proper caster angles so your truck still handles and drives like it should.

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

What's included

  • 6" Radius Arm Kit — tubular arms bolted to factory mounts for factory-like suspension angles and simplified installation.
  • 6.5" Block U-Bolt Kit — fabricated blocks that are stronger and longer-lasting than cast alternatives, with anti-axle wrap geometry to maintain stock ride quality.
  • Radius Arm Upgrade Boxes (Driver & Passenger) — precision-fit components that complete the front suspension architecture.
  • M1 Monotube Shock Absorbers (Pair) — application-valved shocks tuned for balanced on and off-road performance.
  • M1 Monotube Shock Absorbers (Pair) — matched rear shocks for consistent damping across the suspension.
  • Coil Spring — engineered to work with the radius arm geometry and lift height.

Important notes

  • Does NOT fit manual shift transfer cases.
  • Does NOT fit dually models.
  • Does NOT work on models equipped with the Tremor Factory Trim Package.

Why customers pick this at Road Runner

  • Tubular radius arms preserve factory suspension angles — proper caster keeps your truck handling right even after the lift.
  • Fabricated blocks outlast cast alternatives and resist the axle wrap that commonly plagues lift blocks.
  • All shocks, springs, and arms ship in one box — nothing to source separately.
  • Rough Country's limited lifetime replacement warranty backed locally by Road Runner techs.
  • Professional installation and in-house alignment performed as part of every lift install.

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

QtyPartPart #
1Coil 5d | Ford Super Duty (11-22)9297
16.5 In Block U-Bolt Kit | Ford Super Duty (23-24)41200992
1Kit Box | 6" Radius Arm Kit | Ford Super Duty (2023)41200991
1M1 MONOTUBE SHOCK PAIR770818P
1M1 MONOTUBE SHOCK PAIR770805P
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

  • Easy bolt-on installation.
  • Increased ground clearance.
  • Levels the front with the rear of the vehicle.
  • Tubular Radius arms allow for properly set caster. Proper caster is crucial to maintaining factory handling and driveability.
  • Includes application valved M1 monotube shock absorbers which offer the best in balanced performance for on and off-road use.
  • Fabricated blocks are stronger and offer a longer lifespan than cast blocks.
  • Specially designed anti-axle wrap rear blocks maintain stock ride quality while eliminating common lift block problem.
YearsMakeModelDrive
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
2023-2026FordF-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
  • Tire size: 35″ to 37″ tall
  • Lift height: 6″
Does NOT fit manual shift transfer cases. Does NOT fit dually models. Does NOT work on models equipped with Tremor Factory Trim Package.

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.