A sway bar is connected via rubber bushings to the car body or frame in the middle. Outer ends of the sway bar are connected to the parts of the vehicle suspension that holds the wheel (struts or control arms). The part that connects the outer ends of the sway bar to the suspension component is called a sway (or stabilizer) bar link. In most cars a sway bar link has two small ball joints at each end.
Over time, the sway bar link ball joints wear out. Your mechanic should check the sway bar links while performing a regular service with the car on the lift. A worn-out sway bar link will display looseness when pushed up or down. An extremely worn out sway bar link can separate, causing your car to lean excessively as it turns and making it feel less stable on the road. A worn-out sway bar link must be replaced to keep your vehicle safe.
Should both sway bar links be changed if only one is bad? The answer is probably yes. Your mechanic may recommend replacing both sway bar links because both links usually wear at the same rate and if one is bad, the other won’t be far behind. It should be noted that in many cars an old sway bar link could be extremely difficult to remove without damaging it when replacing other components. As so, sway bar links are often replaced whenever a component (a strut or control arm) that the link is connected to is replaced.
At North America Auto Parts, we believe that the steering and suspension of your vehicle is a critical safety item. Therefore, we design our parts with your families safety in mind. We use durable ball joints, protected by the finest neoprene rubber boot seals in all of our enhanced design sway bar links.