Icon Vehicle Dynamics K78363 Stage 3 Suspension Lift Kit Lift 2-3.5" Chevrolet Silverado/GMC Sierra 2500/3500 AT4/AT4X/ZR2 20-26

ICON Stage 3 Suspension System for 2020–2026 Chevrolet Silverado 2500/3500 HD & GMC Sierra 2500/3500 HD

The ICON Stage 3 complete suspension system is engineered for 3/4 and 1-ton GM trucks to deliver improved ride quality, greater wheel travel, and increased capability for on- and off-road use. The system combines vehicle-specific tuned 2.5" aluminum series remote-reservoir front shocks and piggyback rear shocks with billet aluminum upper control arms and forged torsion keys to provide adjustable front lift and robust durability.

The 2.5" aluminum series front shocks feature larger piston area, increased oil volume, internal bump zones, and remote reservoirs for improved damping, heat dissipation, and resistance to cavitation under hard use. Billet aluminum Delta Joint Pro HD upper control arms correct front-end geometry, increase camber/caster adjustment, improve component clearance, and, when paired with extended-travel shocks, increase wheel travel. Forged torsion keys install on factory torsion bars to provide adjustable front lift height while maintaining a bolt-on installation.

• Adjustable front lift: 2–3.5" over stock
• Shocks: Vehicle-specific tuned 2.5" aluminum series remote reservoir front and piggyback rear for superior damping and control
• Ride quality: Improved over stock with no change in towing capacity
• Upper control arms: Billet aluminum Delta Joint Pro HD UCAs for additional caster/camber adjustment and increased wheel travel
• Torsion keys: Forged steel torsion keys for adjustable front lift
• Increased wheel travel: Approximately 3" front wheel travel increase over stock
• Construction: 6061 aircraft-grade aluminum CNC machined components with corrosion-resistant hard anodized shock bodies
• Installation: 100% bolt-on system — no drilling, cutting, or welding required
• Serviceability: Shocks are fully serviceable

Recommended wheel & tire fitment

• Recommended wheels: 18x9" w/ 5.5" backspace / 12mm offset or 20x9" w/ 5.5" backspace / 12mm offset
• Recommended tires: Up to 35" x 12.50" (larger tires may require fender trimming and other modifications)
• Rear lift compatibility: Included rear shocks compatible with 0–1.5" of rear lift over stock

Notes

• Will not fit Cab & Chassis models
• Chevrolet Silverado 2500 ZR2 and GMC Sierra 2500 AT4X will have front lift height range of 0.5–2" over stock
• These systems are to be used with aftermarket upper control arms only
• Shocks are fully serviceable; lift heights indicated are for a stock equipped vehicle
• Requires recalibration of Advanced Driver Assistance Systems (ADAS) after install

Icon Vehicle Dynamics K78363 Stage 3 Suspension Lift Kit Lift 2-3.5" Chevrolet Silverado/GMC Sierra 2500/3500 AT4/AT4X/ZR2 20-26 - Features