Camber adjusters are used to adjust wheel camber, and are located around the upper ball joints.
When replacing the ball joints, you will need to remove them from the ball joint. If the adjuster has already been adjusted with the wrong tool, such as a wrench, it is advisable to replace it so that it can be re-adjusted with the correct wrench.
In addition, excessive rust may be the reason why replacing it is not the right decision.
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