Rock Krawler F2AS3504 3.5in Adventure Series Suspension System Lift Kit

The Rock Krawler F2AS3504 3.5-Inch Adventure Series Suspension System is a complete bolt-in lift kit engineered to deliver improved ride quality, enhanced off-road performance, and increased ground clearance for 4WD Super Duty trucks. Each component in the system is precision engineered to improve factory geometry and increase off-road stability, while remaining fully capable on the street and under tow.

Rock Krawler's Adventure Series name reflects the inclusion of 100% service-free Adventure Series joints built into the control arms — eliminating the need for regular greasing while delivering outstanding misalignment tolerance and dramatically reducing the inherent bind found in factory control arms.

The lift height is achieved through multi-rate coil springs that provide an exceptional ride, excellent handling, and true off-road performance — outperforming standard OEM linear-rate springs in comfort and articulation. The coils are built with the proper free-length for off-road articulation and stay firmly seated in the coil bucket for a controlled, predictable response to bumps, rocks, mud, and trail obstacles.

Key Features:

• 3.5 inches of suspension lift for increased ground clearance and larger tire fitment
• Complete bolt-in system designed for straightforward installation
• 100% service-free Adventure Series joints — no greasing required
• Multi-rate coil springs for superior on-road comfort and off-road articulation
• Geometry-correcting components to recenter axles and restore proper caster and pinion angles
• Engineered for street, towing, and trail use
• All components precision engineered in-house by Rock Krawler

Whether your truck is a daily driver, a work truck, or a weekend trail rig, the Rock Krawler Adventure Series Suspension System provides the comprehensive geometry solution and exceptional build quality needed to handle every adventure with confidence.