ICON Stage 4 Coilover Conversion System K63194 for 2011-2016 Ford F-250/F-350

Transform rigid factory leaf-spring handling into plush, high-speed trail control with the complete 2.5-3 inch Stage 4 conversion kit featuring ICON-exclusive Expansion Packed monotube shocks.

• Precision Tunable Lift: Adjustable compression collars on the coilovers allow you to dial in ride height between 2.5 and 3 inches over stock, optimizing approach angles and tire clearance without altering critical chassis geometry.
• Expansion Pack Reservoir Tech: Integrated remote air chambers rapidly compress nitrogen to instantly recharge shock valving, preventing fade and delivering consistent damping during aggressive wheel travel or heavy payload hauling.
• Direct OEM Mounting Interface: Replaces factory leaf springs using original mounting locations and hardware, avoiding frame cutting while retaining essential onboard electronics such as ABS, Vehicle Stability Control, and Traction Management systems.
• Military-Grade Material Science: Constructed with forged aluminum lower control arms, chrome-silicon valve springs, and anodized aluminum shock housings to withstand corrosive salt, mud, and high-friction rock crawling terrain.
• Enhanced Drivability & NVH Reduction: High-density polyurethane bushings and optimized sway bar end links eliminate excessive suspension slack, smoothing highway pavement feedback while preserving the trucks full factory tow rating.
• Field-Repairable Architecture: The removable eye-to-eye design allows mechanics to disassemble and service internal valving components quickly, minimizing vehicle downtime during competitive events.

This comprehensive suspension overhaul directly resolves steering wander, progressive spring sag, and harsh ride quality associated with aging Super Duty leaf stacks. Compatible with both two-wheel drive and four-wheel drive crew cab platforms. Professional mechanical alignment is strictly required post-installation to maintain even tire wear and steering centering. Backed by ICON Vehicle Dynamics lifetime warranty covering defects in materials and workmanship.