3 Inch Lift Kit | Coilover Conversion | Diesel | Ford F-250 Super Duty (17-22)

Take your diesel Ford F-250 Super Duty to new heights with Rough Country's 3-inch Coilover Suspension Lift Kit. Built for 2017–2022 F-250 Super Duty trucks, this all-inclusive coilover conversion delivers a rugged stance, serious off-road capability, and the ride quality you expect from a factory setup—while allowing up to 35-inch tires for true 4x4 performance.

Why this kit stands out

Designed around preserving factory geometry, this kit uses ultra-durable radius arm drop brackets that bolt directly into the stock mounts. That means improved wheel alignment consistency, steering response, and suspension life—without the guesswork of piecing together components from multiple suppliers. The centerpiece is the Vertex Coilover: a 2.5-inch piston, nitrogen-charged, eight-stage adjustable unit that replaces the stock coil/shock assembly. Its monotube design with an external reservoir boosts oil capacity and damping sensitivity, delivering predictable, fade-free performance from city streets to rocky trails.

What you get with the 3-inch Coilover Suspension Lift Kit

• 3-inch lift height tailored for the diesel Ford F-250 Super Duty (2017–2022)
• Vertex Coilover with 2.5-inch piston, nitrogen-charged for powerful, consistent damping
• Monotube shock with external reservoir for increased oil capacity and heat management
• Radius arm drop brackets precision-fit to factory mounts to maintain factory-like angles
• All needed hardware and components for a complete transformation
• 33–35-inch tire compatibility when paired with proper adjustments, while keeping ride comfort

Performance in real-world scenarios

Whether you’re towing heavy loads, exploring remote backroads, or chasing weekend adventures, this kit keeps you planted. The 8-stage Vertex Coilover lets you dial in comfort for daily driving or tighten the damping for aggressive off-road use, so ride quality isn’t sacrificed for capability. The upgraded oil capacity and damping sensitivity translate to steadier handling on washboard dirt roads, reduced body roll on climbs, and more controlled braking under load.

Installation and practicality

The kit is designed for a thorough at-home install, with an estimated 5–6 hours required. Note that installation involves cutting and drilling to mount the brackets and coilover assembly properly. While it’s a more involved project than a simple strut swap, the in-depth design and included components simplify alignment and fitment, giving you a reliable, factory-like result once complete.

Warranty and long-term reliability

Rough Country backs this 3-inch Coilover Suspension Lift Kit with a limited lifetime replacement warranty against manufacturer defects. That means lasting peace of mind as you push your F-250 beyond stock capabilities, knowing the critical components are protected from structural and workmanship issues from the date of purchase.

Who this kit is ideal for

• Diesel-powered Ford F-250 Super Duty owners seeking a capable, stable 3-inch lift
• Truck enthusiasts who want to run up to 35-inch tires while preserving a near‑factory ride
• Adventurers who value precise geometry, durable construction, and long-term reliability
• Those who prefer a single, complete kit with proven components over matched-up, improvised setups

Upgrade your Ford F-250 with Rough Country’s 3-inch Coilover Suspension Lift Kit and experience the balance of rugged off-road capability, confident highway manners, and a durable, long-lasting suspension system built to handle diesel-powered torque and heavy loads.