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 dampening capabilities and a closed cell insert to reduce shock fade at high speeds.Features & Benefits Designed To Work With Fabtech Lift KitsExcellent Dampening CapabilitiesHigh Flow 9 Stage ValvingTwin Tube Hydraulic ConstructionIn-field testing and multiple vehicle fit checks ensure products will fit properly during installation and provide years of trouble free service with superior vehicle ride qualities.9/16 in. Hardened Chrome Piston Rod1 3/8 in. OD PistonClosed Cell Foam InsertPolyurethane BushingAdditional Attributes Extended Length:16.21 INShock Stroke:5.53 INCollapsed Length:10.68 INWARNING CA Proposition 65:YesWARNING CA Proposition 65 Message:WARNING: Cancer and Reproductive Harm-www.P65Warnings.ca.gov.