6 Inch Lift Kit | Diesel | 4 Link | Ovld | Ford F-250/f-350 Super Duty (17-22)

Built for Super Duty diesel owners who want maximum ground clearance with corrected geometry, this 6-inch 4-Link lift kit replaces your factory control arms with a durable, adjustable setup that maintains proper caster and driveline angles. You'll gain up to 6 inches of lift, level the front with the rear, and support 35"–37" tires without compromising handling or ride quality.

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

• N3 Shock Kit — Nitrogen-charged shock absorbers engineered for balanced performance on and off-road, delivering a smooth highway ride with improved trail capability.
• 6.5 In Block U-Bolt Kit — Fabricated anti-axle wrap rear blocks that are stronger and longer-lasting than cast alternatives, preventing binding and lift block problems while maintaining stock ride quality.
• Box Kit — Structural reinforcement for proper lift geometry and support.
• 4.5–6in Up Arm Kit & Lower Arms — Fixed upper arms and adjustable lower control arms that allow you to dial in proper caster for factory handling characteristics.
• Transfer Case Clocking Kit — Re-indexes your transfer case to maintain correct driveline geometry after the lift.
• U-Bolt Kit — Heavy-duty fastening for secure suspension mounting.
• 6 Inch Coil Box — Lifted coil springs that deliver the 6-inch height gain with corrected suspension geometry.
• Radius arm drop brackets & brake lines — Allow proper caster setting (crucial for maintaining factory handling) and include stainless steel extended brake lines and brackets so you have everything needed for a complete install.

Important notes

• Diesel engine models only — does NOT fit gas engine F-250 or F-350.
• Does NOT fit dually models, manual shift transfer cases, or vehicles with a 3.5" rear axle tube.
• Requires factory contact overload springs — does NOT work on models equipped with the Tremor Factory Trim Package.
• Fabricated lift block replaces the factory block as part of this kit.

Why customers pick this at Road Runner

• Radius arm drop brackets maintain proper caster geometry — no wandering steering or uneven tire wear after install.
• Rough Country Lifetime Replacement Warranty backed by our local team — we stand behind every kit we sell.
• Transfer case clocking included — driveline angles are corrected so you get factory driveability alongside 6 inches of lift.
• Professional install by technicians who perform these 4-Link conversions every week — not a guessing game.
• Alignment performed in-house as part of every lift install, ensuring your truck handles like stock.
• Fabricated anti-wrap blocks eliminate the common lift-block problems that plague other kits.

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