6 Inch Lift Kit | Rear Springs | M1 | Ford F-250/F-350 Super Duty 4WD (99-04)

Upgrade your 99-04 Ford F-250/F-350 Super Duty 4WD with Rough Country’s 6" Ford Suspension Lift System and transform the look, capability, and confidence you feel behind the wheel. This front-to-back kit levels the stance by raising the front to match the rear, delivering a bold, aggressive profile without sacrificing on-road comfort or towing capability.

Why this 6" Lift System stands out

Designed for real-world use, this lift doesn’t just add height — it preserves ride quality and handling. The key is smart engineering that keeps suspension geometry in check while you enjoy a lifted stance. Front and rear lifted leaf springs deliver added ground clearance and a more capable platform for off-road adventures, while retaining a smooth, factory-like feel on highways, daily commutes, and back-road excursions.

Core features that matter

• 6" overall lift for a commanding silhouette and improved approach/departure angles.
• Front and rear lifted leaf springs provide extra ride height without compromising load-carrying ability or ride quality.
• Sway bar drop brackets and a track bar bracket keep suspension geometry aligned for a stable, confident ride at any speed or terrain.
• Rough Country N3 shocks with 10-stage variable/high-pressure nitrogen charging deliver a balanced blend of off-road action and smooth highway comfort.
• 18mm spring-loaded piston rod and 54mm shock body for durability and improved cooling under demanding conditions.
• Compatible with up to 37" tires with proper wheel backspacing, giving you plenty of room to tailor your look and performance.
• Easy-to-install design so you can hit the trails or the job site sooner with less downtime.
• Lifetime Replacement Warranty backing your investment for the long haul.

Who this kit is ideal for

Perfect for truck owners who want a bold, level stance and improved ground clearance without sacrificing ride quality. If you’re towing, hauling, or simply chasing the rugged, capable look of a lifted Super Duty, this kit is built to handle it. It’s especially appealing for drivers who plan to run up to 37" tires and want reliable performance across daily driving and off-road use.

Practical considerations and tips

• Works with the Ford F-250/F-350 Super Duty 4WD model years 1999–2004, delivering a leveled front-to-rear stance for a balanced, confident ride.
• To maximize tire options, pair the lift with appropriate wheel backspacing to fit up to 37" tires without rubbing or compromising steering geometry.
• After installation, a professional alignment is recommended to preserve handling quality and ensure optimal tire wear.
• Expect noticeable improvement in approach/departure angles, clearance over obstacles, and a more commanding on-road presence — without surrendering daily drivability.

With Rough Country’s 6" Suspension Lift System, your Ford Super Duty gains the rugged, capable stance you want and the dependable performance you need. It’s more than a lift — it’s a thoughtful upgrade designed to keep your truck looking good, riding smooth, and ready for whatever the road or trail throws your way.