6 Inch Lift Kit | 4 Link | Ovld | M1 | Ford F-250 Super Duty 4wd (2015-2016)

Built for F-250 Super Duty owners who want 6 inches of lift without sacrificing factory geometry — this 4-Link lift kit replaces your factory rear control arms with adjustable Rough Country units, adds lifted coil springs and anti-wrap rear blocks, and includes N3 monotube shocks tuned for highway comfort and off-road control. You'll gain up to 37" tire clearance while radius arm drop brackets preserve proper caster and handling.

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 — replaces your factory lift block with a fabricated unit that's stronger and resists binding during suspension travel.
• 6" Upper Arm Kit — fixed upper control arms engineered to work with the 4-Link geometry and maintain alignment under load.
• 6" Lower Arms — adjustable lower control arms that let you dial in caster and camber at installation for perfect geometry.
• 589 Box Kit — mounting and structural components that anchor the 4-Link system to your F-250's frame.
• 6" D-Coil Springs — lifted coil springs that provide the foundation of your 6" gain while supporting payload.
• M1 Monotube Shock Absorbers (Pair) — nitrogen-charged shocks tuned to balance highway ride quality and off-road damping. Two pairs included to cover front and rear.
• Radius Arm Drop Brackets — allow proper caster geometry to be set and maintained, crucial to keeping factory-like handling and driveability.

Important notes

• This kit is designed for 2015–2016 F-250 Super Duty 4WD models equipped with rear factory contact overload springs only. Does not fit F-350, dually, or gas engine models.
• Recommended tire range is 35"–37". Larger or smaller tires may affect speedometer accuracy and suspension geometry.
• The fabricated anti-wrap rear blocks replace your factory lift blocks. Installation requires removing and re-blocking the rear axle.
• Stainless steel extended brake lines and brackets are included to accommodate the added height — professional installation ensures proper routing and safety.
• Radius arm drop brackets must be installed and torqued correctly to preserve caster angles and prevent premature tire wear or handling issues.

Why customers pick this at Road Runner

• Local Rough Country experts — our techs install these kits every week and know every detail of proper caster setup.
• Alignment included in-house — after your lift goes in, we perform a full wheel alignment to confirm geometry is factory-correct.
• Lifetime Rough Country warranty backed by Road Runner — if a part fails, we replace it with no questions asked.
• 4-Link geometry done right — adjustable lower arms mean we dial in caster and camber to eliminate bump steer and wandering on the highway.
• One-day turnaround — most customers leave with their F-250 lifted and aligned the same day they arrive.
• Brake line safety — extended lines are routed and secured per Rough Country spec, no improvisation.

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