All Balls Racing Shock Seal Head Assemblies are a complete assembly, ready to install. Direct O.E.M. replacement featuring the latest O.E.M. style seal with pre-scraper. All designs incorporate an air bleed hole for easy re-assembly. Direct O.E.M. replacement featuring the latest O.E.M. style seal with pre-scraper. All designs incorporate an air bleed hole for easy re-assembly. Includes 1 shock seal head kit. Note: Kit contents will vary by fitment and are subject to change.