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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 | Vertex | Ford F-250/f-350 Super Duty (08-10)

Part #: 53950UPC: 843030153038Brand: Rough Country

$3,099.95

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 Super Duty owners who want an aggressive lifted stance without sacrificing factory geometry — this 6-inch radius arm lift kit delivers a full 6 inches of front and rear clearance while keeping suspension angles true to Rough Country's engineering. You'll fit 35"–37" tires and maintain the driveline stability that made your F-250/F-350 legendary.

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

  • Radius Arm Upgrade Box (qty 2) — Heavy-duty radius arms at 27 lbs each with durable rubber bushings for vibration absorption and factory-angle preservation.
  • Vertex 2.5 FR Shocks (qty 2) — Front adjustable reservoir shocks engineered for balanced on and off-road performance.
  • Vertex 2.5 RR Shocks (qty 2) — Rear adjustable reservoir shocks matched to the front for consistent ride quality.
  • Add-A-Leaf — Rear leaf spring pack upgrade to support the lift and new ride height.
  • 6 Inch Coil Box — Fabricated coil springs engineered for durability and strength — fabricated designs outlast cast alternatives.
  • 3 Inch Block and U-Bolt Kit — Rear axle blocks and fasteners to achieve final ride height.
  • Alignment Cam at Axle — Adjustable caster correction to dial in geometry after installation.
  • Track Bar Relocation Bracket & Drop Pitman Arm — Factory-mount geometry corrections included in the kit.
  • Brake Line Relocation Brackets — Safety-critical line management for the new suspension height.

Important notes

  • Does not fit dually models.
  • Factory rear contact overload springs must be removed.
  • Gas models may require exhaust modification to clear the front driveshaft.

Why customers pick this at Road Runner

  • 100% bolt-on design — no cutting, drilling, or fabrication required. Install happens fast.
  • Radius arm geometry keeps factory suspension angles intact, preserving ride quality and durability.
  • Vertex adjustable reservoir shocks tuned for daily driving and light off-road use.
  • Alignment performed in-house after every lift install — caster adjustment cam included to dial in geometry perfectly.
  • Backed by Rough Country's Lifetime Replacement Warranty, honored locally at Road Runner.
  • Professionally installed by technicians who perform these upgrades every week.

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

QtyPartPart #
1Kit Box | Ford Super Duty (08-10)1538BOX1
1Add-A-Leaf | Ford Super Duty (05-10)6111
13 Inch Block And U-Bolt Kit | Ford F-250 Super Duty 2WD/4WD (1999-2010)6552
16 Inch Coil Box | Ford Super Duty (05-22)9296
2Vertex 2.5 FR 6 In | Ford Super Duty (05-22)685754
2Vertex 2.5 RR 6 In | Ford Super Duty (05-16)695762
1Radius Arm Upgrade Box | Ford F-250/F-350 Super Duty 4WD (2005-2022)53600991A
1Radius Arm Upgrade Box | Ford F-250/F-350 Super Duty 4WD (2005-2022)53600992A

Features

  • 100% bolt-on installation
  • Increased ground clearance
  • Levels the front with the rear of the vehicle
  • Includes heavy-duty radius arms equipped with durable durable rubber Bushings for maximum vibration absorption.
  • New radius arms help maintain factory angles.
  • Includes adjustable alignment cam at the axle to allow caster adjustment
  • Includes application valved N3 series 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.
YearsMakeModelDrive
2008-2009FordF-250 Super Duty FX44WD
2008-2009FordF-250 Super Duty Harley-Davidson Edition4WD
2008-2010FordF-250 Super Duty King Ranch4WD
2008-2010FordF-250 Super Duty Lariat4WD
2008-2010FordF-250 Super Duty XL4WD
2008-2010FordF-250 Super Duty XLT4WD
2009-2010FordF-250 Super Duty Cabela's4WD
2008-2009FordF-350 Super Duty FX44WD
2008-2009FordF-350 Super Duty Harley-Davidson Edition4WD
2008-2010FordF-350 Super Duty King Ranch4WD
2008-2010FordF-350 Super Duty Lariat4WD
2008-2010FordF-350 Super Duty XL4WD
2008-2010FordF-350 Super Duty XLT4WD
2009-2010FordF-350 Super Duty Cabela's4WD
  • Tire size: 35″ to 37″ tall
  • Lift height: 6″
Does NOT fit dually models. Factory rear contact overload springs will need to be removed Gas models may require exhaust modification to clear front drive shaft

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.