ICON Vehicle Dynamics K73064 Stage 4 Suspension System 1.5-3.5" Lift Kit with Billet Upper Control Arms

The ICON Vehicle Dynamics Stage 4 Suspension System for 2019-2023 GM Silverado/Sierra 1500 trucks delivers exceptional on-road comfort and off-road performance through advanced engineering and premium components. This comprehensive system dramatically increases wheel travel and damping ability, providing outstanding vehicle control in any terrain.

Key Features:

• Adjustable 2.5 Series remote reservoir coilovers with 1.5-3.5" of front lift height adjustment
• ICON-engineered Eibach coil springs for superior vehicle feel throughout the range of travel
• 2.5 Series piggyback rear shocks with remote reservoirs for optimum cooling and consistent damping
• Corrosion-resistant CAD plated shock bodies with 7/8" shafts
• Vehicle-specific shock tuning for superior ride quality and performance
• Billet aluminum upper control arms with patented Delta Joint technology
• Fits both 2WD and 4WD applications
• Allows fitment of larger, more aggressive wheel and tire combinations

Delta Joint Technology:

The included billet upper control arms feature ICON's innovative Delta Joint, a heavy-duty high-angle ball joint that combines the durability of a traditional ball joint with the performance characteristics of a uniball. The Delta Joint utilizes a zinc-plated housing for corrosion resistance, sealed construction to keep contaminants out, and metal-on-metal construction with a greaseable design for extended longevity and noise-free operation. This design delivers greater angularity than typical ball joints while being more robust and weather-resistant than standard uniballs.

Remote Reservoir Design:

The remote reservoir configuration on both front coilovers and rear shocks ensures optimal performance by increasing shock oil capacity, which maintains cooler operating temperatures during extended off-road use and provides more consistent damping characteristics. This translates to better vehicle control and comfort over rough terrain and during demanding driving conditions.

The Stage 4 system represents ICON's highest level of performance for the GM 1500 platform, making it an excellent choice for drivers who demand the best capabilities from their truck on paved roads and maximum performance in off-road conditions.

WARNING: This product contains chemicals known to the State of California to cause cancer, and birth defects or other reproductive harm.