Raybestos Professional Grade Ball Joints are constructed to meet the design and performance of the original part. 505-1311 is designed with premium quality materials for exceptional performance, reliability and peace of mind. The low friction bearing design allows for low turning effort. Supplied hardware aids in proper installation and ensures a complete repair. Raybestos Chassis is dedicated to raising the bar on the innovation, performance and safety of aftermarket products and services. Raybestos Professional Grade Chassis products exhibit top-quality performance under the most strenuous conditions and consistently meet or exceed original equipment specifications.