Upgrade your 2023 Ford F250 or F350 ride by swapping the rigid factory solid front axle for a fully independent coilover suspension system that dramatically improves pavement manners and off-road articulation.

The K63164L Stage 4 conversion kit replaces heavy leaf-springs with a calibrated independent setup engineered specifically for Super Duty 4x4 platforms, delivering measurable performance gains without compromising daily drivability.

• Precision Damping Architecture: Utilizes ICON’s NCV (National Coilover Valve) technology housed within 3-inch Monarch shock bodies to deliver progressive compression and rebound tuning, smoothing harsh impact transfer while maintaining stability on winding roads.
• Factory Geometry Preservation: Precision-lengthened upper and lower control arms maintain original suspension pick-up points, eliminating excessive pinion angle changes, CV wear, and driveline vibration.
• Expandable Fluid Capacity: Integrated expansion packs increase internal shock absorption volume, actively managing thermal buildup during repeated mountain passes, trail crawling, or desert traverses to prevent heat fade.
• Adjustable 2.5-Inch to 3-Inch Lift Profile: Provides a controlled ride-height increase across the full measured range, clearing oversized tires while keeping the roll center low for confident cornering and trailer towing.
• Direct Bolt-On Replacement: Mounts securely to existing frame reinforcement points using standard hardware, completely removing the need for chassis cutting, welding, or structural modification.
• Heavy-Duty Corrosion Protection: Constructed from high-strength chromoly linkages, zinc-dusted suspension brackets, and powder-coated bushing sleeves to resist salt spray, mud abrasion, and constant UV degradation.
• Enhanced Wheel Clearance: Natively widens the front track and reduces unsprung mass to resolve tire rub and bumper contact, giving owners flexibility to choose wider aftermarket wheels with various offsets without interference.

Every mounting interface is engineered to precise tolerances, ensuring snug fitment and long-term alignment retention. The transition from solid axle to independent coilovers restores steering rack feedback, reduces nose dive under braking, and absorbs small road imperfections that traditionally shake the cab apart. Built for owners who demand consistent traction and comfortable daily operation alongside serious trail capability.