ICON Vehicle Dynamics 2021-2023 Chevrolet Tahoe/Suburban and 2021-2023 GMC Yukon/Yukon XL suspension systems are designed with maximum performance and the serious driver in mind. ICON engineers’ primary focus is to increase wheel travel and damping ability, which translates into outstanding vehicle control and ride quality both on and off-road. With wheel travel and ride quality in mind, ICON engineers researched each component of the vehicle platform’s suspension and addressed any areas where performance could be extracted. This Stage 4 system includes vehicle-specific tuned front and rear 2.5 Series coilover shocks featuring remote reservoirs for exceptional cooling properties and ICON-engineered coil springs for superior vehicle “feel” through the range of travel. These coilovers are also height adjustable from 2.5-3.25” of front lift and 3-4” of rear lift over stock for an aggressive stance and allowing the use of larger, more aggressive wheel and tire combinations. ICON 2.5 Series coilover shocks feature a vehicle-specific valving that balances the performance of the truck from front to rear. ICON's exclusive Compression Damping Control Valves are included for precisely dialing in your suspension performance. CDCV controls fluid flow under compression, allowing you to achieve the perfect tune whether driving on the street, slow-crawling through the rocks or mobbing across the desert at full throttle.. This system features upper control arms with ICON's patented Delta Joint. The Delta Joint is a heavy-duty high angle ball joint that combines the durability of a ball joint with the performance characteristics of a traditional uniball. While the industry standard uniball does a great job of allowing the control arms of a vehicle to articulate with little bind, they do have an inherent weakness that leaves more to be desired when used in a daily driven application - exposure to the elements. The Delta Joint features a zinc plated housing providing the first layer of corrosion resistance, while a tough grease seal keeps potentially harmful elements out of the inner workings of the joint. Metal on metal construction and a greaseable design increase the longevity of the Delta Joint while at the same time allowing for noise-free operation. What makes the Delta Joint unique is that it brings the best of both worlds to ICON upper control arms with features that make it more robust than a uniball, and at the same time capable of greater angularity than a typical ball joint.. Tubular Delta Joint upper control arms not only add strength and durability, but help retain factory alignment specs, increasing caster over stock and allow proper wheel alignment at the lift height this system provides. The system also includes fabricated rear toe links for proper rear-end alignment at the new, taller ride heights, ensuring optimal handling. Additionally, ICON offers the necessary components to make this system compatible with all submodels and configurations that these vehicles are offered, including those equipped with Magnetic Ride control and/or Adaptive Air Ride suspension. Features like these make the ICON Vehicle Dynamics 2021-2023 Chevrolet Tahoe/Suburban and 2021-2023 GMC Yukon/Yukon XL Stage 4 suspension system an excellent choice for those drivers looking to enhance the capabilities of their SUV on the road as well as in the dirt.. ICON 21-23 GM SUV suspension systems are designed to increase wheel travel and damping ability, which translates into outstanding vehicle control and ride quality both on and off-road.. APPLICATION NOTE #85: Advertised lift height ranges are for a stock equipped vehicle. Increasing weight of vehicle due to accessories will alter lift range.. TECH NOTE: Most SUV submodels equipped with gasoline engines will have front lift height range of 2.5-3.25" over stock. Recommended Aftermarket Tires: 33"x12.50" (Larger tires may fit but fender trimming and modifications may be required). TECH NOTE: Most SUV submodels equipped with diesel engines will have front lift height range of 2-2.75" over stock. Tubular Upper Control Arms with Delta Joint ball joints for added strength, durability, and alignment spec range. APPLICATION NOTE #55: Shocks are fully serviceable. Lift heights indicated are for a stock equipped vehicle.. TECH NOTE: Most Suburban/Yukon XL submodels will have rear lift height range of 2.5-3.5" over stock. APPLICATION NOTE #129: Will not work with factory installed electronically controlled suspension. All shocks are ICON CDCV equipped for 10 settings of external compression damping adjustment. 2.5 Series coilovers feature corrosion resistant CAD plated shock bodies with 7/8" shafts. TECH NOTE: Most Tahoe/Yukon submodels will have rear lift height range of 3-4" over stock. Recommended Aftermarket Wheels: ICON Alloys - 17x8.5 with 4.75” Backspace / 0mm Offset. Fabricated rear toe links allow for proper rear end alignment with taller ride height. Remote reservoirs maintain cooler operating temperatures during extended off-road use. ICON shocks feature vehicle specific tune for superior performance and ride quality. Recommended Aftermarket Wheels: ICON Alloys - 18x9 with 5” Backspace / 0mm Offset. Recommended Aftermarket Wheels: ICON Alloys - 20x9 with 5” Backspace / 0mm Offset. ICON 21-24 GM Tahoe/Suburban/Yukon/Yukon XL 2.5-3.25in Stage 4 Suspension System. APPLICATION NOTE #162: Not compatible with factory air ride equipped vehicles. Increased lift height allows for fitment of larger and more aggressive tires. FK Rod End bearings provide extended longevity and minimal deflection. Adjustable front coilovers provide 2.5-3.25” of front lift height. Adjustable rear coilovers provide 3-4” of rear lift height. 21-23 GM SUV 2.5-3.25" STAGE 4 SUSPENSION SYSTEM TUBULAR. Up to 20% increase in front wheel travel over stock. Shocks are fully rebuildable and re-tunable. OEM Wheels & Tires Fitment: Yes. Suspension Lift Kit. SUSPENSION SYSTEM. K73104T

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