6 Inch Lift Kit | 4-link | No Ovld | M1 | Ford F-250 Super Duty 4wd (15-16)

Built for F-250 Super Duty owners who want 6 inches of lift without sacrificing factory handling geometry — this 4-Link lift kit pairs adjustable lower control arms with fixed upper arms and radius arm drop brackets to keep your caster angle correct. You'll gain 35"–37" tire clearance, improved off-road travel, and that aggressive stance, all while maintaining the smooth highway ride Rough Country is known for.

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

• Block U-Bolt Kit (No Overloads) — secures the fabricated rear lift blocks to your axle with hardened fasteners designed for strength and longevity.
• 6-Inch Upper Arm Kit — fixed upper control arms that work with your adjustable lowers to maintain proper suspension geometry.
• 6-Inch Lower Arms — adjustable lower control arms that allow caster and camber tuning for optimal handling and tire wear.
• 589 Box Kit — mounting brackets and hardware to integrate the 4-Link setup with your factory frame.
• 6-Inch D-Coil Springs — lifted coil springs engineered to complement the 4-Link geometry and support the added height.
• M1 Monotube Shock Absorbers (Pair) — nitrogen-charged shocks tuned for balanced on- and off-road performance with a smooth highway ride.
• Radius Arm Drop Brackets — allow proper caster correction and maintain factory handling characteristics after lift installation.
• Fabricated Anti-Wrap Rear Blocks — replace factory blocks with stronger, specially designed blocks that prevent axle wrap and binding.
• Extended Stainless Steel Brake Lines & Brackets — pre-assembled and ready to install, ensuring safe braking geometry at the new ride height.

Important notes

• Does not fit F-350 models, gas engine models, or dually configurations.
• Does not fit vehicles equipped with factory rear contact overload springs.
• The fabricated lift block replaces your factory block — no reuse of OE hardware in this location.

Why customers pick this at Road Runner

• Rough Country's Lifetime Replacement Warranty backed by local expertise — if something fails, we handle it.
• Radius arm drop brackets and adjustable lower arms mean caster is set correctly during installation, preserving factory handling on highway and trail.
• Our technicians install 4-Link kits on Super Duties every week — fast turnaround, zero guesswork.
• Professional alignment performed in-house after every lift install, included as part of the service.
• Stainless steel brake lines and extended brackets already in the box — no hunting for fitment-specific hardware.
• Nitrogen-charged M1 shocks strike the balance between smooth daily driving and off-road capability.

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