6 Inch Lift Kit | Diesel | Ovld | Vertex | Ford F-250 Super Duty 4wd (15-16)

Built for F-250 Super Duty diesel owners who want 6 inches of ground clearance without sacrificing ride quality, this Rough Country lift kit delivers leveled stance, aggressive looks, and geometry correction to keep your truck handling like stock. Supports 35–37" tires while maintaining proper caster angle for factory-like driveability on and off pavement.

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

• Vertex 2.5 front coilovers (qty 2) — nitrogen-charged shocks engineered for balanced on-road comfort and off-road capability without harsh bottoming.
• Vertex 2.5 rear shocks (qty 2) — matched damping for the rear suspension, completing the balanced performance package.
• 6-inch rear coil springs (qty 1) — lifted spring rate that works with the rear blocks to maintain ride quality while adding clearance.
• Anti-wrap fabricated rear blocks — strengthen against binding and axle wrap, built to outlast cast alternatives.
• Radius arm drop brackets — reposition the suspension geometry to restore proper caster angle, keeping handling and driveability stock-like.
• Extended stainless steel brake lines and brackets — ensure safe braking clearance and modulation after the lift.
• 548 Kit Box for Ford Super Duty (15–16) — all hardware and fasteners engineered for this model year.

Important notes

• This kit is designed exclusively for 2015–2016 F-250 Super Duty 4WD models equipped with rear factory contact overload springs. It does not fit F-350, dually, or gasoline-engine models.
• Recommended tire range is 35–37 inches; exceeding this may affect suspension geometry and braking performance.
• Radius arm drop brackets preserve caster angle — critical to maintaining factory handling characteristics and preventing premature tire wear.

Why customers pick this at Road Runner

• Rough Country Lifetime Replacement Warranty backed by an authorized dealer who stands behind every install.
• Caster corrected during installation — our technicians set geometry in-house, ensuring your truck handles like stock after the lift.
• Professional alignment performed as part of every lift install, so you drive out straight and safe.
• Our crew installs these kits weekly — experience matters when calibrating suspension components and brake-line routing.
• Nitrogen-charged N2.0 shocks tuned for both pavement and trail — no need to upgrade later for balanced ride quality.

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