6 Inch Lift Kit | Rear Blocks | Ford F-250/F-350 Super Duty 4WD (1999-2004)

Transform your 1999-2004 Ford F-250/F-350 Super Duty 4WD with Rough Country’s 6-Inch Suspension Lift Kit. This complete upgrade levels the front and rear for a balanced, aggressive look while increasing ground clearance and broadening your off-road capabilities. It’s engineered to enhance both trail performance and highway comfort, so you don’t have to choose between a bold stance and a smooth ride.

What makes this kit stand out

• Level stance from front to rear — achieve a commanding, even height that improves aerodynamics, handling, and overall presence on and off the pavement.
• Front lifted leaf springs provide reliable additional ride height without sacrificing ride quality or control.
• Sway bar drop brackets and track bar bracket keep suspension geometry aligned, preserving a factory-like ride after the lift.
• Rough Country N3 shocks — 10-stage variable high-pressure nitrogen-charged dampers blend off-road action with smooth highway performance for everyday driving and weekend adventures.
• Durable 18mm spring-loaded piston rod and 54mm shock body design deliver lasting performance and faster cooling under demanding conditions.
• Rear blocks included to complete the lift and maintain axle geometry for a true, balanced upgrade.
• 37-inch tire compatibility with proper wheel backspacing, unlocking bold tire choices while maintaining safe clearance and performance.
• Lifetime Replacement Warranty for long-term confidence and peace of mind.

The kit is designed to deliver a practical, purpose-built solution rather than a one-size-fits-all lift. You’ll notice improved approach and departure angles, stronger stance on rocky trails, and a more controlled feel when cruising highway speeds—without the jittery ride some lifts of this size can cause.

Real-world benefits and ideal use cases

• Off-road enthusiasts gain the ability to tackle rough terrain, rocky trails, and uneven switchbacks with better clearance and traction. The leveled setup helps maintain better contact with the ground, reducing wind-up and improving stability on descents.

• Daily drivers appreciate a more confident silhouette and improved visibility from the higher driving position, while the tuned shocks minimize harshness on pothole-ridden streets.

• Towing and payload scenarios benefit from a more balanced stance, as the kit preserves predictable handling and maintains tire contact across varying loads.

Compatibility, fitment, and installation

Specifically designed for the Ford F-250 and F-350 Super Duty 4WD models from 1999 through 2004, this kit fits up to 37" tires when paired with the appropriate wheel backspacing. It’s built to be installable by experienced DIY enthusiasts or professional shops, with components that work together to retain steering and suspension geometry after lifting.

What’s included and why it matters

Every essential element needed for a comprehensive upgrade is included: front lifted leaf springs, sway bar drop brackets, a track bar bracket, Premium N3 shocks, 18mm piston rod hardware, and a 54mm shock body design, plus rear blocks to complete the lift. This cohesive package ensures consistent ride quality, predictable handling, and a visually striking stance—without sacrificing everyday usability.

If you’re looking to elevate your Ford Super Duty with a robust, thoughtfully engineered 6-inch lift that trades guesswork for real, tangible improvements, this kit from Rough Country delivers. It’s purpose-built for owners who want a reliable, long-term solution that enhances capability, appearance, and confidence behind the wheel—season after season.