6 Inch Lift Kit | Diesel | 4 Link | M1 | Ford F-250/F-350 Super Duty (17-22)

Elevate your Ford F-250/F-350 Super Duty with Rough Country’s 6 Inch Lift Kit for Diesel engines (M1). This 4-Link suspension transformation replaces your factory arms with rugged, purpose-built components to unlock more wheel travel, improved handling, and a bold, aggressive stance without sacrificing on-road confidence.

At the heart of the system, the 4-Link setup pairs fixed upper arms with adjustable lower control arms for precise alignment across a wide range of tire sizes and driving conditions. The kit also includes radius arm drop brackets to maintain proper geometry and caster, which is crucial for predictable steering and solid braking feel when the truck is loaded or pushed to its limits.

Every element is chosen to preserve factory-like performance while delivering real-world gains off-road. The set features lifted coil springs for increased travel, ultra-durable fabricated anti-wrap rear blocks to prevent axle wrap and binding under torque, and stainless steel extended brake lines with dedicated brackets to maintain brake response and pedal feel as the suspension articulates.

Rough Country’s N2.0 nitrogen-charged shocks are designed to strike a balance between off-road control and highway comfort. You’ll notice improved dampening on washboard and rough terrain, while staying composed when you’re cruising on pavement. This kit is built for durability, with components designed to stand up to the rigors of heavy pulling, muddy trails, and long days behind the wheel.

Lifetime Replacement Warranty from Rough Country backs this system, underscoring the confidence behind the engineering and the commitment to long-term reliability.

What makes this 6 Inch Lift Kit stand out

This isn’t just a lift—it’s a complete suspension philosophy upgrade. The combination of a 4-Link design, geometry-preserving radius arm drop brackets, and adjustable lower control arms delivers impressive articulation without sacrificing steering feel or control. The N2.0 shocks tame rough terrain without becoming spongy on the highway, and the anti-wrap rear blocks keep power to the ground when you’re climbing or towing. Stainless brake lines ensure reliable braking under extended flex and heavier loads. It’s a cohesive package designed for diesel-duty trucks that refuse to compromise between off-road capability and daily driving comfort.

Who this kit is ideal for

• Diesel-powered Ford F-250/F-350 owners who want serious ground clearance for challenging trails without losing on-road control.
• Drivers who tow or haul frequently and need dependable handling when the suspension is fully loaded.
• Overlanders and outdoor enthusiasts seeking greater wheel travel, clearer approach/departure angles, and a commanding stance.
• Off-road enthusiasts who want a robust, install-ready kit with a proven track record of durability and long-term reliability.

Practical notes and benefits

Anticipate a more capable, comfortable ride on rough roads and a more planted feel when leaving pavement. The kit’s geometry corrections reduce bump steer and maintain caster under torque, so steering remains predictable under acceleration and braking. The durable components are designed to endure mud, rocks, and demanding terrain, while the included hardware and stainless lines simplify installation and long-term maintenance.

In short, this 6 Inch Lift Kit for Ford F-250/F-350 Super Duty (2017–2022) diesel builds a capable, dependable platform for aggressive off-roading and serious work duties alike—without compromising daily usability. If you’re looking for a well-rounded, purpose-built 4-Link suspension upgrade that delivers real value and lasting performance, this kit stands out from the crowd.