Product Description

ICON 2008-2010 Ford F250/F350 4-5.5" Lift Stage 4 Coilover Conversion w/ Radius Arm (K63124R)

The ICON Vehicle Dynamics Stage 4 Coilover Conversion System for the 2008–2010 Ford F-250/F-350 Super Duty is a premium suspension upgrade designed to deliver maximum adjustability, improved ride quality, and enhanced off-road performance. Featuring ICON’s 2.5 Series coilover shocks, a heavy-duty radius arm system, and a complete front suspension transformation, this kit eliminates factory limitations while providing superior damping control and increased wheel travel. 

Adjustable 4–5.5” Lift for Custom Ride Height

This system provides an adjustable lift range of 4 to 5.5 inches, allowing you to fine-tune your truck’s stance and accommodate larger wheel and tire combinations. The coilover design enables precise ride height adjustment to suit both on-road driving and off-road performance needs.

2.5 Series Coilover Shocks for Superior Performance

At the core of this system are ICON’s 2.5 Series coilover shocks, engineered to deliver improved damping characteristics and increased suspension travel. The coilover configuration enhances responsiveness, reduces front-end dive, and provides a smoother, more controlled ride across varying terrain.

Coilover Conversion for Increased Travel and Ride Quality

The coilover conversion replaces the factory coil spring setup with a high-performance coilover system, significantly improving suspension efficiency. This design increases wheel travel, reduces bind, and enhances overall ride quality both on and off-road. 

Heavy-Duty Radius Arm System

Included in this Stage 4 system are ICON’s heavy-duty fabricated radius arms, designed to improve strength, optimize caster geometry, and increase suspension articulation. These arms provide improved durability and better performance when running larger tires or tackling challenging terrain.

Complete Suspension Geometry Correction

This system includes all necessary components to properly correct steering and suspension geometry after lifting, including track bar relocation, sway bar links, bump stop extensions, and brake line brackets. These elements ensure stable handling, reduced wear, and long-term reliability.

Built for Performance and Durability

Constructed using high-quality materials such as CNC-machined components and aluminum shock bodies, this system is designed to withstand extreme use. ICON shocks are fully rebuildable and revalvable, ensuring long-term serviceability and consistent performance.

Complete Bolt-On Coilover Conversion System

This Stage 4 kit is a comprehensive bolt-on upgrade that transforms your Super Duty into a high-performance off-road machine while maintaining excellent on-road drivability. It is ideal for drivers seeking maximum adjustability, improved ride quality, and serious off-road capability.

Specifications

  • Vehicle Fitment: 2008–2010 Ford F-250/F-350 Super Duty 4WD
  • Front Lift Height: 4"–5.5" Adjustable
  • Rear Lift Height: ~4"–5" (varies by configuration)
  • Front Shocks: ICON 2.5 Series Coilovers
  • Rear Shocks: ICON 2.5 Series Shocks
  • Front Suspension: Coilover Conversion System
  • Radius Arms: Heavy-Duty Fabricated Radius Arm System
  • Suspension Travel: Significantly Increased Over Stock
  • Recommended Tire Size: Up to 37"
  • Shock Construction: 6061 Aluminum Bodies with Large Shafts
  • Serviceability: Fully Rebuildable & Revalvable
  • Install Type: Bolt-On System
  • Use Case: Daily Driving, Towing, Overlanding, High-Performance Off-Road

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