2001-2006 GM C/K2500HD C/K3500 Non Dually Front Performance Shock Absorber (FTS7192)Description Fabtech Performance Shocks have been designed to work in conjunction with each of our suspension systems, resulting in superior ride control. Features include high velocity 9 stage valving for excellent damping capabilities and a closed cell insert to reduce shock fade at high speeds. Features Twin Tube Hydraulic Construction 9 16" Hardened Chrome Piston Rod 1 3 8" OD Piston Closed Cell Foam insert High Flow 9 Stage Valving Extended Length