Skyjacker F84524KH-N 4 in. Suspension Lift Kit with 4-Link Conversion and Nitro Shocks

The Skyjacker F84524KH-N is a 4-inch Class II suspension lift kit engineered specifically for heavy-duty diesel Super Duty trucks. Designed to deliver increased ground clearance and a more commanding stance, this kit maintains a smooth, factory-like ride quality both on and off the road while significantly improving wheel travel, articulation, and overall handling.

At the heart of this kit are Skyjacker's Nitro N8000 Series twin-tube shock absorbers, pressurized with nitrogen gas to prevent fluid foaming and shock fade. These shocks feature true velocity-sensitive, multi-stage valving that automatically adjusts damping performance to match changing terrain and speed conditions — delivering consistent control whether cruising on the highway or navigating demanding off-road obstacles.

Kit Includes:

• Front coil springs — rate-tuned for heavy-duty diesel applications with a black powder-coated finish for corrosion resistance
• Nitro N8000 Series nitrogen-charged twin-tube shock absorbers
• 4-Link conversion components for improved axle stability and directional control
• Track bar relocation bracket
• Radius arm drop bracket
• Steering stabilizer
• All necessary mounting hardware
• Detailed installation instructions

The 4-link conversion is CNC-machined and forged for maximum structural integrity, ensuring the axle remains properly centered under hard off-road loads. The heavy-duty coil springs are engineered with extensive rate tuning and dynamic balance to support the added weight of diesel powertrains without sacrificing ride comfort.

Skyjacker backs this suspension system with a limited lifetime warranty against defects in materials and workmanship for the original purchaser. Professional installation is recommended for this system.