The ICON 2.5 Series piggyback shock pair for 2001–2010 GM HD front applications is vehicle-specific in length and valving to improve off-road capability and street comfort. Rebuildable and revalveable, these shocks employ digressive pistons, an internal Bump Zone that increases damping near full compression, remote-reservoir cooling to limit fade, and heavy-duty components including hardened shafts and premium fluid to ensure consistent damping across temperatures.
ICON 01-10 GM HD 0-2.5in Front 2.5 Series Shocks VS PB - Pair