ICON 2023-2025 Ford F-250/F-350 Super Duty 4WD, Diesel, 4.5" Lift, Stage 4 Suspension System (K64544)
The ICON Vehicle Dynamics Stage 4 Suspension System is a premium lift solution engineered specifically for 2023–2025 Ford F-250 and F-350 Super Duty 4WD diesel trucks. Designed to dramatically improve ride quality, towing stability, and off-road performance, this system features dual-rate front coil springs, 2.5 Series remote reservoir shocks, geometry-correcting components, and heavy-duty rear lift hardware. Built for work trucks, towing applications, and aggressive off-road driving, this system delivers enhanced wheel travel, improved handling, and long-term durability across demanding conditions.
4.5” Lift Height for Maximum Ground Clearance
This system delivers approximately 4.5” of front lift using ICON-engineered dual-rate coil springs optimized specifically for diesel-powered Super Duty models. The progressive spring design provides a softer initial rate for comfort and a firmer secondary rate for improved bottom-out resistance during heavy loads and off-road use.
2.5 Series Remote Reservoir Shocks
ICON 2.5 Aluminum Series remote reservoir shocks increase oil capacity and cooling efficiency, reducing heat buildup during extended driving. These vehicle-specific tuned shocks deliver consistent damping performance, improved ride comfort, and superior handling across varied terrain conditions.
Radius Arm and Track Bar Geometry Correction
Fabricated radius arm drop brackets and track bar drop components restore proper suspension geometry after lifting. These upgrades improve steering feel, reduce bump steer, and maintain proper axle alignment for predictable handling and improved long-term suspension reliability.
Adjustable Track Bar for Precise Alignment
An adjustable front track bar allows on-vehicle alignment correction to properly center the axle under the chassis. This improves steering response and helps reduce unwanted movement in demanding driving situations.
Dual Steering Stabilizers for Improved Control
The included dual opposing steering stabilizer kit enhances steering stability and reduces feedback commonly associated with larger tires. This feature improves overall control during highway driving, towing, and off-road use.
Heavy-Duty Rear Lift Components
The rear suspension includes fabricated 5” lift blocks and extended U-bolts designed to withstand towing and hauling demands. This setup ensures a balanced stance while maintaining durability under heavy loads and aggressive driving conditions.
Increased Suspension Travel for Off-Road Performance
This Stage 4 system provides approximately 50% more front suspension travel than factory components, improving traction, ride quality, and stability when driving across rough terrain.
Complete Bolt-On System Design
Engineered as a direct bolt-on solution, this system includes high-strength CNC-machined and laser-cut components that ensure durability while simplifying installation. Extensive ICON testing and tuning guarantee optimal system performance across multiple driving environments.
Specifications
- Vehicle Fitment: 2023–2025 Ford F-250/F-350 Super Duty 4WD (Diesel)
- SKU: K64544
- Lift Height: 4.5" Front Lift / ~2" Rear Lift
- Front Springs: ICON Dual-Rate Coil Springs
- Rear Lift Method: 5" Rear Lift Blocks with Extended U-Bolts
- Front Shocks: ICON 2.5 Series Remote Reservoir
- Rear Shocks: ICON 2.5 Series Remote Reservoir
- Track Bar: Adjustable Front Track Bar Included
- Radius Arm Components: Radius Arm Drop Brackets Included
- Steering Stabilizers: Dual Opposing Steering Stabilizer Kit
- Brake Lines: Stainless Steel Extended Front Brake Lines
- Sway Bar Components: Front Sway Bar Drop Brackets Included
- Shock Shaft Diameter: 7/8"
- Suspension Travel: Approximately 50% Increased Front Travel
- Recommended Tire Size: Up to 37" x 12.50"
- Recommended Wheels: 17x8.5", 18x9", or 20x9" with Proper Backspacing
- Material: High-Strength Steel and CAD-Plated Aluminum Components
- Serviceability: Fully Rebuildable and Revalvable Shocks
- Install Type: Bolt-On System
- Compatibility Note: Designed for Diesel Models Only
- Fitment Note: Will Not Fit Cab & Chassis Models
- Use Case: Heavy Towing, Work Trucks, Daily Driving, Off-Road Performance
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