ICON 2020+ GM HD 0-2in RR Shock System w/Billet UCA - 78734

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.

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.

Recommended Aftermarket Tires: 35" x 12.50" (Larger tires may fit but fender trimming and modifications will be required.)

Recommended Aftermarket Wheels: ICON Alloys - 18x9 with 5.5” Backspace / 12mm Offset

Recommended Aftermarket Wheels: ICON Alloys - 20x9 with 5.5” Backspace / 12mm Offset

OEM Wheels & Tires Fitment: Yes

Features & Benefits

• One-piece digressive piston design with vehicle specific valving for unsurpassed performance and ride quality on and off-road
• All ICON 2.5 Series Piggyback and Remote Reservoir shocks can be upgraded to ICON's Compression Damping Control Valve (CDCV)
• ICON's internal "Bump Zone" increases damping by 20% to provide more control as the shock approaches full compression
• One-piece impact extruded aluminum cylinders offer excellent corrosion resistance and consistent finish
• Premium grade 5WT shock oil for consistent suspension damping along a wide temperature range
• Remote reservoir design improves heat dissipation to reduce shock fade during prolonged use
• CNC machined 6061 billet aluminum construction for light weight and exceptional strength
• Additional camber and caster adjustability allows for precise wheel alignment
• Features ICON's Patented Delta Joint (U.S. Patent No. 10,731,700)
• 7/8" diameter induction hardened, chrome plated shock shaft
• Nitrogen charged monotube design with remote reservoir
• Vehicle specific taper pin provides OE-like fitment
• PTFE Lined 7/8” FK Rod Ends for improved response
• Built in o-ring sealed dust cover cap
• 100% Rebuildable
• 100% Revalveable

Downloads & Resources

• Installation Instructions (PDF)

Fitment has not been independently verified for your vehicle. Confirm the manufacturer application against your year, make, model, trim, and modifications before ordering.

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