Ball
Joint (Vehicle)
A
ball joint is a flexible joint consisting of a ball in a socket.
Ball joints, one or two of which are found at each front wheel
on most cars, are used primarily in the front suspension because
of their wide range of motion. A worn ball joint, sometimes
signaled by a knocking sound, particularly when a vehicle
is making sharp turns or driving over bumps, can be dangerous
and should be replaced immediately.
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