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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 | 4 Link | M1 | Ford F-250/f-350 Super Duty 4wd (08-10)

Part #: 58840UPC: 840269918223Brand: 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 F-250/F-350 Super Duty owners who want 6 inches of ground clearance without sacrificing factory geometry — this 4-Link lift kit raises your truck while preserving suspension angles and driveability. Rough Country's radius arm drop brackets hold caster at factory specs, and the kit supports 35"–37" tires for a truly aggressive stance.

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

  • 6in Upper Arm Kit — precision-fit front suspension arms that bolt to factory mounts and maintain proper caster geometry.
  • 6in Lower Arms — front lower control arms with axle-mounted adjustment for caster fine-tuning.
  • 584s Kit Box — structural brackets and hardware specific to 08–10 Super Duty applications.
  • Add-A-Leaf — supplemental rear leaf spring to handle the additional load from the lift.
  • 3 Inch Block & U-Bolt Kit — rear ride-height blocks and fasteners that mount to the axle.
  • M1 Monotube Shock Pair (Front) — application-valved N3 series absorbers engineered for balanced on- and off-road performance.
  • M1 Monotube Shock Pair (Rear) — matching N3 series rear shocks for consistent ride quality across both axles.
  • 6 Inch Coil Box — lifted coil springs that mount to the front frame and upper control arms.

Important notes

  • Does NOT fit dually models or diesel-equipped trucks.
  • If your F-250/F-350 is equipped with rear overload leafs, they must be removed before installation.

Why customers pick this at Road Runner

  • 100% bolt-on design — no cutting, drilling, or fabrication required; most installs complete in one day.
  • Factory-correct caster geometry preserved by radius arm drop brackets, ensuring your truck handles like stock.
  • Professional alignment performed in-house after every lift install — critical for tire wear and steering response.
  • Rough Country Lifetime Replacement Warranty backed by local experts who install these kits every week.
  • N3 Monotube shocks tuned for your Super Duty, delivering balanced comfort on pavement and trails.

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

QtyPartPart #
16in Up Arm Kit | Ford Super Duty (05-16)1580 BOX 1
16in Lower Arms | Ford Super Duty (05-16)1580 BOX 2
1584s Kit Box | Ford Super Duty (08-10)1584BOX1
1Add-A-Leaf | Ford Super Duty (05-10)6111
13 Inch Block & U-Bolt Kit | Ford Excursion/F-250 Super Duty/F-350 Super Duty6539
1M1 MONOTUBE SHOCK PAIR770754P
1M1 MONOTUBE SHOCK PAIR770762P
16 Inch Coil Box | Ford Super Duty (05-22)9296

Features

  • Easy bolt-on installation
  • Increased ground clearance
  • Levels the front with the rear of the vehicle
  • Radius arm drop brackets allow for properly set caster. Proper caster is crucial to maintaining factory handling and driveability.
  • Includes application valved N3 series shock absorbers which offer the best in balanced performance for on and off-road use.
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. Does NOT fit diesel engine models. If vehicle is equipped with rear overload leafs, they will need to be removed.

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.