Complete kits include upper ball joint, Protection cap for pre-installation and Lower ball Joint. Made from forged steel, with plastic insert, filled with grease and sealed with the dust cover in elastomer attached on both side (top and bottom) to ensure optimum sealing efficiency and long life. Vehicle safety is an SKF priority and our high quality parts are designed for safe and lasting repairs. Product must be installed by knowledgeable mechanic using correct tooling and in strict accordance with SKF instructions and the vehicle mounting instructions. Scan QR code on box product label to access SKF instructions and more detailed product and technical information.