The Moog Ball Joint is a joint which is flexible and uses a ball and socket type of construction. This is comprised of a bearing stud, a socket, and hardened steel which is enclosed in a steel housing. The chief functions of the ball joint are for the steering linkage units and the steering knuckle pivot supports. This operates as the pivot points between the suspension and the tires in some vehicles like the 1989 - 1990 Jeep Cherokee. This reinforces the weight and creates the wheel alignment setting. In general, vehicles that have the standard type of suspension system contain two ball joints in every wheel. These are the lower and upper ball joints on which cars with MacPherson strut suspension units use the former with an upper strut bearing rather than the latter. Plenty of cars like the Jeep Cherokee come equipped with ball joints that are lubricated for a long period of time. These greased ball joints are very practical to car owners since they will not have to grease the ball joints every so often. The Moog MOK3134T is always available in our shop, just drop by at our website and see for yourself. Our website has the most comprehensive list of auto parts and accessories on hand, from catalytic converters down to headers, we go it all. Our website and our toll-free line is available 24 hours, seven days a week, so be ready to contact us any time of the day. You can email or call us for your orders.