To ensure compatibility, ICON is no longer offering GM 2500HD/3500HD upper control arms as individual components. Upper control arms can only be purchased in unison with ICON shock absorbers as a complete system. The included ICON Vehicle Specific (V.S.) 2.5 Aluminum Series shocks are designed and built to give your vehicle outstanding performance off-road and a smooth ride on the street. These shocks are configured specifically for each application in both length and damping tune. Like all of ICON's Shock Absorbers, the V.S. 2.5 Series shocks are 100% rebuildable and 100% revalveable. For piggyback and specific remote reservoir applications, ICON'S unique use of a 6061-billet aluminum manifold a few inches below the top cap of the shock creates an internal Bump Zone that when used creates an additional 20% of damping force. This additional force helps prevent harsh bottom outs and controls the suspension when compressing at high velocity. Remote reservoirs ensure optimum performance by increasing the duration of consistent damping regardless of situation, keeping the shocks at a cooler operating temperature during heavy use. The ICON CDC Valve is an externally adjustable valve that restricts oil flow into the reservoir which creates 10 levels of compression damping force ranges.

TECH NOTE: The additional down travel provided by an ICON Suspension System can cause clearance issues between the sway bar and the stock splash guard as the suspension approaches full extension. ICON Vehicle Dynamics 2020-UP GM HD Splash Guard Kit, part number 77202 recommended.

2020-UP GM HD 0-2" LIFT CDCV SHOCK SYSTEM WITH BILLET UCA

ICON 2020+ GM HD 0-2in CDCV Shock System w/Billet UCA

20-UP GM HD 0-2" CDCV SHOCK SYS W/ BILLET UCA

20-UP GM HD 0-2" CDCV SHOCK SYS BILLET

Suspension Control Arm Kit

GM HD UCA/SHOCK KIT