Backed by over 50 years of OEM manufacturing and OE validation testing, CTR's ball joints deliver reliable performance you can count on. CTR's knowledge of OE specifications ensure fast, hassle-free installation Product Features:Engineered Polymer Design - Metal to Polymer designed seat to eliminate service and insure consistent steering control and drivability for the service life Sealed Socket - Reduces corrosion and wear Strong and Durable - ball Studs are heat treated to meet the OE validation requirements Easy to Install - Precise OE tolerances for easy installation and steering alignment giving you the perfect fit out of the box