ICON K65904RL 4.5" Lift Stage 5 Suspension System Kit w/ Radius Arms & Expansion Packs | 2023-2025 Ford F250/F350 Super Duty DIESEL

Features:

• 4.5" front lift for diesel 4WD models
• 2" rear lift via expansion leaf packs
• CDCV shocks with 10 compression settings
• Remote reservoirs resist fade under heavy use
• Dual-rate front coils improve comfort and control
• Radius arms increase strength and steering clearance
• No drop brackets needed for front geometry
• Adjustable track bar improves axle alignment
• Centerline stabilizer with piggyback reservoir included
• Up to 50% more front wheel travel than stock
• Includes stainless steel braided brake lines
• Shocks are fully rebuildable and tunable

Turn Your Super Duty Into A Trail Ready Towing Beast

If you're ready to push your Super Duty past stock limitations, the ICON K65904RL Stage 5 Suspension System with Radius Arms and Expansion Packs is the all-in-one upgrade that delivers strength, comfort, and control where it matters most. This system gives you 4.5 inches of front lift and 2 inches in the rear using ICON’s expansion packs, which offer a smoother ride and better axle control than traditional lift blocks. Whether you’re hauling a heavy trailer or carving up dirt roads, the dual-rate coil springs and CDCV-equipped shocks work together to soak up bumps and stay planted. With 10 compression settings at your fingertips, you can fine-tune your ride for daily driving, towing, or weekend off-road runs without compromising comfort. The heavy-duty radius arms not only look the part, they offer improved caster control, tire clearance at full lock, and better overall handling feel. A 2.5 Centerline stabilizer with a piggyback reservoir helps calm steering shake from big tires and rough terrain. It's a true performance package for truck owners who need their suspension to handle real-world work and play.

Precision Tuned Suspension That Adapts To Any Load Or Terrain

The ICON Stage 5 Suspension System with radius arms and expansion packs is engineered to bring high-performance control and adjustability to 2023-2025 diesel-powered F-250 and F-350 trucks. It features 2.5 Aluminum Series remote reservoir shocks with Compression Damping Control Valves, giving you 10 clicks of external compression adjustment for fine-tuned damping response. Dual-rate coil springs provide a smooth initial ride on-road, then transition to a firmer rate under compression to improve stability when towing or hitting tough terrain. The rear end is lifted with ICON’s expansion leaf packs, which improve ride quality and reduce axle wrap without the harshness of solid lift blocks. Fabricated radius arms include built-in caster cams for alignment correction and increased ground clearance, eliminating the need for bulky drop brackets. A track bar drop bracket and adjustable track bar work together to maintain proper axle position and reduce bump steer. The system also includes extended stainless steel brake lines, sway bar drop brackets, and aluminum bump stop spacers, all built to match ICON’s commitment to quality, durability, and performance across any driving condition.

Fits: 2023, 2024, 2025 Ford F250/F350 Super Duty DIESEL

Notes:

• Fits ONLY 4WD diesel F‑250 / F‑350 trucks
• Not compatible with gas models or cab‑chassis
• Front lift is 4.5", rear lift via expansion packs
• Shocks have CDCV with 10 external compression settings
• Remote reservoirs help prevent shock fade under load
• Radius arms include built‑in caster cams and strength
• No drop brackets required on front suspension
• Track bar drop bracket corrects bump steer and centering
• Includes heavy‑duty fabricated rear lift blocks
• Stainless braided brake lines included for durability
• Shocks and stabilizers are fully rebuildable and tunable
• Backed by ICON lifetime warranty on key parts