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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

4 Inch Lift Kit | Rear Springs | M1 | Ford F-250/f-350 Super Duty 4wd (99-04)

Part #: 50140UPC: 840269920509Brand: Rough Country

$1,339.95

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 Super Duty owners who want a level stance and aggressive ground clearance, this 4-inch lift kit raises the front of your truck to match the rear for a factory-balanced look. You'll gain up to 35 inches of tire clearance while maintaining proper suspension geometry and ride quality through matched front and rear leaf springs plus premium M1 monotube shocks.

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

  • Front leaf springs (pair) — 4-inch lifted springs that raise the front of your truck to level height.
  • Rear leaf springs (pair) — 4-inch lifted springs that work with the front for balanced suspension geometry.
  • M1 monotube shock pair (front and rear) — Premium nitrogen-charged shocks with 10-stage variable damping, 18mm piston rod, and 54mm body for smooth highway and off-road performance.
  • U-bolt kits — Universal fastening hardware for secure spring mounting.
  • Sway bar drop brackets and track bar bracket — Keep suspension angles optimized after lifting for a factory-like ride feel.
  • Box kit (application-specific) — Contains all brackets and hardware tailored to your Super Duty model.

Important notes

  • Does NOT fit V-8 gas engine models.
  • Does NOT fit dually models.
  • Does NOT fit trucks with a production date before March 1, 1999.
  • Trucks equipped with a 2-piece rear driveshaft require a carrier bearing drop bracket (Rough Country #1197) — sold separately.
  • Maximum tire clearance is 35 inches with proper wheel backspacing.

Why customers pick this at Road Runner

  • Rough Country lifetime replacement warranty backed by local service and support.
  • Professional installation by technicians who perform these lifts every week — same-day turnaround most days.
  • Alignment performed in-house as part of every lift install to ensure correct caster and geometry.
  • Matched front and rear springs restore level stance without the need for factory spacers.
  • Premium M1 shocks tuned for both highway comfort and off-road articulation — not budget alternatives.

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

QtyPartPart #
1Universal U-Bolt Kit7617
1Box Kit | Ford Excursion (00-05) Ford Super Duty (99-04)7582
24in Front Leaf Spring | Ford Excursion/F-250 Super Duty/F-350 Super Duty 4WD8057
24in Rear Leaf Spring | Ford F-250/F-350 Super Duty 4WD (1999-2004)8066
1M1 MONOTUBE SHOCK PAIR770791P
1M1 MONOTUBE SHOCK PAIR770762P
1Universal U-Bolt Kit7650

Features

  • Easy bolt-on installation
  • Increased ground clearance
  • Levels the front with the rear of the vehicle
YearsMakeModelDrive
1999-2004FordF-250 Super Duty Lariat4WD
1999-2004FordF-250 Super Duty XL4WD
1999-2004FordF-250 Super Duty XLT4WD
2004FordF-250 Super Duty Harley-Davidson Edition4WD
2004FordF-250 Super Duty King Ranch4WD
1999-2004FordF-350 Super Duty Lariat4WD
1999-2004FordF-350 Super Duty XL4WD
1999-2004FordF-350 Super Duty XLT4WD
2003-2004FordF-350 Super Duty King Ranch4WD
2004FordF-350 Super Duty Harley-Davidson Edition4WD
  • Tire size: 33″ to 35″ tall
  • Lift height: 4″
Does NOT fit V-8 gas engine models. Does NOT fit dually models. Does NOT fit models with a production date before 3-1-1999 A carrier bearing drop bracket is needed for trucks equipped with a 2-piece rear driveshaft. (#1197)

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.