Restore Precision Handling and Ride Comfort for Your 2021–2024 Ford F-150 4WD with the ICON CO 2.5 Series Stage 4 Suspension System

Upgrade your truck's foundation with the ICON Vehicle Dynamics CO 2.5 Series Stage 4 Suspension System, engineered specifically for 2021–2024 Ford F-150 4WD models to eliminate rattles, correct steering geometry, and provide unmatched damping control across diverse driving conditions.

• Delivers an adjustable 3.5-inch to 4.5-inch lift profile utilizing progressive coil springs and step-adjustable preload collars on both axles, ensuring optimal wheel travel and preventing frame contact or wheel clearance issues.
• Equipped with high-performance CO 2.5 shocks featuring Closed Center Variable Displacement (CDCV) valve technology, allowing independent hydraulic tuning for compression and rebound phases to maintain stability under heavy loads and rapid bumps.
• Includes robust tubular upper control arms that replace restrictive factory geometries, restoring proper pinion angles and reducing toe-out drift for improved straight-line tracking and extended CV joint life.
• Integrates precision-engineered steel lower crossmember brackets and upgraded double-wound rear bump stops to manage extreme articulation, protecting the chassis from metal-to-metal impacts while preserving ride compliance on paved surfaces.
• Built with corrosion-resistant finishes and sealed shaft designs that resist abrasion and moisture, offering long-term durability that outlasts competitors' generic coatings in harsh environmental conditions.
• Fits directly to factory mounting points without cutting or welding, streamlining installation with complete hardware sets and detailed instructions compatible with both crew cab and bed configurations within the specified model years.
• Backed by a limited lifetime warranty on shock absorbers and structural components, reflecting the manufacturer's commitment to permanent repair or replacement coverage against defects in workmanship and finish.