6 Inch Lift Kit | 4-link | No Ovld | Ford F-250/f-350 Super Duty 4wd (17-22)

Built for F-250/F-350 Super Duty owners who want a serious lift without sacrificing handling, this 6-inch 4-Link lift kit replaces your factory control arms with Rough Country's durable fixed upper arms and adjustable lowers, paired with radius arm drop brackets that preserve proper caster geometry. You'll gain 6 inches of ground clearance and the ability to fit 35–37 inch tires while maintaining factory-correct driveline angles and 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 — Application-valved nitrogen-charged absorbers engineered for balanced performance both on and off-road, delivering a smooth highway ride and responsive off-road control.
• Box Kit — Fabricated coil spring perches that replace the factory setup and support the lifted suspension geometry.
• 4.5–6 in Up Arm Kit — Fixed upper control arms manufactured to precise tolerances for repeatable caster and camber.
• 4.5–6 in Lower Arms — Adjustable lower control arms that allow fine-tuning of suspension geometry during installation.
• 4.5 In Block U-Bolt Kit (No Overloads) — Fabricated anti-wrap rear blocks that prevent axle bind and maintain stock ride quality without factory contact overload springs.
• Transfer Case Clocking Kit — Allows proper transfer case re-indexing to maintain correct driveline angles after the lift is installed.
• 6 Inch Coil Box — Lifted coil spring assembly paired with radius arm drop brackets that maintain proper caster setting — crucial for factory handling and driveability.
• Extended Brake Lines & Brackets — Stainless steel lines and mounting hardware to ensure safe stopping power at the new ride height.

Important notes

• Does not fit F-350 Super Duty models, diesel engines only — not compatible with gas-engine Super Duties.
• Does not fit manual shift transfer cases, dually models, or vehicles with 4-inch rear axle tubes.
• Does not fit models equipped with the factory Tremor trim package.
• Factory contact overload springs are removed; this kit uses fabricated anti-wrap blocks instead.
• Transfer case re-indexing is required as part of installation to maintain correct driveline geometry.

Why customers pick this at Road Runner

• Radius arm drop brackets and adjustable lower arms ensure proper caster correction — your truck handles like stock, not sloppy.
• Rough Country Lifetime Replacement Warranty backed locally; we stand behind every installation.
• Our technicians install these kits every week — no guesswork, no comebacks.
• Alignment performed in-house as part of every lift install, included in your quote.
• Transfer case clocking done right the first time, eliminating driveline vibration and premature wear.

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