Raybestos 507-1621 Professional Grade Control Arm and Ball Joint Assembly Constructed to meet the design and performance of the original part Designed with premium quality materials for exceptional performance, reliability and peace of mind The precision-machined bearing ball joint with durable rubber boot maintains tight tolerances and protects against contamination for smooth steering and longevity Tough, durable bushing materials withstand environmental contamination and high temperature use Supplied hardware ensures a complete repair