Video: 2005-2022 Ford F-250/F-350 4.5-6" Coil Over Conversion Kit
Rough Country

6 Inch Coilover Conversion Lift Kit | Ford F-250/F-350 Super Duty (2023-2026)

Part #: 400258-configCategory: Suspension Lift Kits

Sold & installed by an Authorized Rough Country Dealer

Does it fit? Listed for 2 vehicles (Ford). Pick your vehicle to check.

  • Adjustable Ride Height
  • Superior Ride Quality
  • Enhanced Damping Control
  • Dual Front Shocks

Install time: 6-10 hoursDue to variances in motor weight, this kit does NOT fit models equipped with a gas engine.To ensure proper functionality of your Advanced Drive Assistance System (ADAS) and Light Detection and Ranging (LiDar) systems, recalibration may be necessary to retain proper functionality of these features.

Call or request a quote for today’s price and installation.

  • Authorized Rough Country dealer
  • Installed at our Silver Star Rd shop
  • No-credit-needed financing

About the 6 Inch Coilover Conversion Lift Kit | Ford F-250/F-350 Super Duty…

Conquer with Confidence: Elevate your fifth-generation Ford Super Duty with Rough Country's 6-Inch Coilover Suspension Lift Kit. Designed for serious off-roaders and daily drivers alike, this performance-driven system delivers aggressive ride height while preserving smooth, factory-like comfort. Run up to 37-inch tires with confidence and dominate terrain like never before.

Precision Engineering. Premium Ride: Fine-tune your stance and clearance with fully adjustable Vertex coilovers that dramatically enhance damping performance for a smoother, more responsive ride. Each coilover features a 2.5-inch piston with nitrogen-charged monotube design and external reservoirs offering 56% more fluid capacity than standard shocks for unmatched heat dissipation and consistency. A secondary V2 front monotube shock adds even more stability and control, making this a dual-shock setup that stands above the rest.

Built to Outlast: Heavy-duty 1/4-inch fabricated coilover mounts ensure maximum strength and durability under the harshest conditions. Radius arm drop brackets provide proper caster correction to maintain factory-like handling, while heavy-duty fabricated rear lift blocks deliver superior strength compared to cast alternatives. Rear blocks are also custom-engineered to prevent axle wrap, preserving your ride quality mile after mile. Pair with optional V2 or Vertex rear shocks for four-corner performance you can feel.

Smarter Installation. Better Results: This bolt-on system is designed for a hassle-free setup no cutting or drilling required. Top-mounted reservoir brackets offer clean, secure placement, and front-to-rear leveling eliminates factory rake for a more aggressive, balanced look. Boosted ground clearance allows you to tackle trails with ease, while enhanced suspension geometry keeps your Super Duty performing as it should.

Peace of Mind Included: Backed by Rough Country's Limited Lifetime Replacement Warranty, this 6-Inch Coilover Suspension Lift Kit is built to last and protected from structural or workmanship defects from day one. Drive harder, ride smoother, and lift smarter with Rough Country.

Notes

  • Due to variances in motor weight, this kit does NOT fit models equipped with a gas engine.
  • To ensure proper functionality of your Advanced Drive Assistance System (ADAS) and Light Detection and Ranging (LiDar) systems, recalibration may be necessary to retain proper functionality of these features.
  • Does NOT ft models equipped with Tremor Off-Road Package as they are equipped with approximately a 1.5-inch factory lift.
  • Does NOT fit dually models.

Features

  • Adjustable Ride Height: Fine-tune your vehicle's stance and clearance with fully adjustable coilovers.
  • Superior Ride Quality: Enjoy a smoother, more responsive ride with performance-tuned suspension.
  • Enhanced Damping Control: Coilover conversion dramatically boosts damping capability for better handling.
  • Dual Front Shocks: Includes a secondary V2 front monotube shock for increased stability and control.
  • Heavy-Duty Coilover Mounts: Features 1/4-inch fabricated mounts for maximum strength and durability.
  • Convenient Reservoir Mounting: Comes with a top-mounted reservoir bracket for clean, secure installation.
  • Simple Bolt-On Setup: No cutting or drilling required for a hassle-free installation.
  • Boosted Ground Clearance: Gain extra height to tackle off-road terrain with confidence.
  • Front-to-Rear Leveling: Corrects factory rake by aligning the front suspension height with the rear.
  • Precision Caster Correction: Includes radius arm drop brackets to ensure proper caster settings, preserving factory-like handling and stability.
  • Heavy-Duty Fabricated Blocks: Built tougher than cast alternatives for superior strength and long-term durability.
  • Anti-Axle Wrap Rear Blocks: Custom-designed to retain factory ride quality while eliminating common axle wrap issues.
  • Enhanced Shock Compatibility: Pair with V2 or Vertex rear shocks for four-corner performance and smoother ride control.

What’s in the Box

Front

  • Vertex Coilovers
  • Radius Arm Drop Brackets
  • Sway-Bar Drop Brackets
  • Track Bar Drop Bracket
  • Stabilizer Relocation Brackets
  • Pitman Arm
  • Brake Line Brackets
  • Bumpstop Spacers
  • Hardware

Rear

  • Fabricated Anti-Wrap Lift Blocks
  • Carrier Bearing Drop Bracket
  • Brake Line Brackets
  • U-Bolts
  • Hardware

Shocks

  • (2) V2 Monotube Shocks

Specifications

Specifications for the 6 Inch Coilover Conversion Lift Kit | Ford F-250/F-350 Super Duty (2023-2026)
BrandRough Country
TypeSuspension Lift Kits
Part number400258-config
Est. Install Time6-10 hours

Vehicle Fitment

2 vehicles listed by Rough Country. Always confirm drive type and trim before you order.

Vehicles the 6 Inch Coilover Conversion Lift Kit | Ford F-250/F-350 Super Duty (2023-2026) fits
YearsMakeModelDetails
2023–2026FordF-250 Super Duty4WD
2023–2026FordF-350 Super Duty4WD

Video

2005-2022 Ford F-250/F-350 4.5-6" Coil Over Conversion Kit

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Map of Orlando Treads & More, 6224 Silver Star Rd, Orlando
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Monday8:30 AM – 6:30 PM
Tuesday8:30 AM – 6:30 PM
Wednesday8:30 AM – 6:30 PM
Thursday8:30 AM – 6:30 PM
Friday8:30 AM – 6:30 PM
Saturday8:30 AM – 6:30 PM
SundayClosed

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