An important part of your cars suspension system is its ball joints. Made of extra tough steel, ball joints act as the pivot point between two parts: the suspension and your cars tires. Ball joints help support your cars weight and, as is the case with some vehicles, ball joints may be used to help set the alignment. Lets take a closer look at this key component of your cars suspension system.
Enclosed in a steel housing, ball joints are used on the front end of almost every car, truck, SUV, and minivan. As might be expected, ball joints are subject to a lot of wear and tear, so to properly protect them ball joints are housed in an enclosed boot to keep dirt away from the joint assembly.
There are two types of suspension systems that use ball joints. The first is a conventional system that uses an upper and lower ball joint. The second is called a MacPherson strut system that uses a single lower ball joint and an upper strut bearing. No upper ball joint is needed as the upper strut bearing does the job instead.
Maintenance for ball joints has changed over the years for most cars. Many vehicles come equipped with ball joints that are permanently lubed, so...
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