The national cost for a suspension ball joint replacement in 2022 is between $71 and $446 with an average of $181

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In Ashburn, people who book through CarAdvise save $94 on average for Ball Joint Replacement. Lock in this price now.

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National average cost of a Ball Joint Replacement
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What is a ball joint and how does it work?

A ball joint is a component of a vehicle’s suspension system, part of the lower control arm. The control arm attaches to the steering knuckle (that houses the wheel hub and connects to the wheel) by way of the ball joint. The ball joint consists of a ball and socket encased in a rubber boot filled with grease. Like a shoulder joint that allows your arm to move up and down, the ball joint allows the suspension to move up and down so that it can respond to bumps on the ground and weight shifts when turning. It also allows the steering knuckle to rotate when steering. Some vehicles have both an upper and lower control arm and two ball joints.

What are signs that a ball joint needs to be replaced?

A ball joint is critical to your vehicle’s suspension. It is the only component connecting the lower control arm to the steering knuckle. So, if the ball joint goes bad, your wheel’s attachment point to the lower suspension will be compromised. Signs that a ball joint is failing include the following

You hear a knocking or clunking sound when turning or going over bumps. You might also feel the sensation on the floor

There is excessive and uneven wear to the inside or outside edges of your tires

The rubber boot on the ball joint is leaking fluid Note

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How is this service performed

How is a Ball Joint Replacement done?

Some ball joints require the use of a press to remove the old ball joint from the control arm and insert a new one. Others allow for a more straightforward process with nuts and bolts. In either case, a mechanic will need to lift and support your vehicle off of the ground and remove the wheel and tire. From there, the following steps are typically taken to replace the ball joint

  • Remove the axle retaining nut and loosen the axle inside the hub assembly
  • Disconnect the tie rod and any wiring from the steering knuckle
  • Remove the upper steering knuckle mounting nut and dislodge the knuckle to access the ball joint retaining nut
  • Remove the ball joint retaining nut
  • Separate the ball joint from the lower control arm using a ball joint separator
  • Push the axle shaft through and out of the wheel hub to free up the steering knuckle from the ball joint
  • Remove the steering knuckle, taking care to support the axle shaft
  • Unbolt the ball joint from the lower control arm (or, when necessary, use a press to dislodge the part)
  • Install the new ball joint by either bolting or pressing into the control arm
  • Replace all components and torque fasteners to manufacturer’s specifications

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