Rock Krawler F2XF3504 3.5in X-Factor Suspension Lift System for F-250/F-350 4WD

The Rock Krawler F2XF3504 is a complete 3.5-inch X-Factor Suspension System engineered for 2011–2016 Ford F-250 and F-350 4WD trucks. Every component in this system is precision-crafted in-house to optimize factory geometry, delivering improved ride quality, enhanced off-road stability, and increased ground clearance for larger tires.

At the heart of the system are tuned multi-rate coil springs that provide an exceptional ride both on the highway and off-road. The front suspension upgrades to a 4-Link geometry conversion, replacing the factory radius arm setup to improve axle control, eliminate suspension bind, and allow for significantly smoother articulation on the trail.

Key Features:

• 3.5-inch lift height for increased ground clearance and larger tire fitment
• Complete bolt-in suspension system — no cutting or fabrication required
• Tuned multi-rate coil springs for superior on-road comfort and off-road performance
• 4-Link front geometry conversion replaces factory radius arms for improved axle control and reduced suspension bind
• Rear mini leaf pack enhancement smooths out the OEM leaf springs for better on- and off-road ride quality
• All geometry corrections included for proper front and rear alignment
• Components designed, tested, and tuned in-house by Rock Krawler
• Shock options available (sold separately or as a package)

The Rock Krawler X-Factor system is built for trucks that pull double duty — equally at home on city streets, towing heavy loads, or navigating demanding off-road terrain. Whether you're a daily driver or a weekend trail runner, this system provides the strength, performance, and ride quality your Super Duty demands.