They often wear out before the control arm itself, and a trustworthy mechanic will let you know if replacing the bushing alone is enough to fix the issue. Repairing a suspension ball joint costs ...

The problem stems from front suspension components that may have ... “the nut on the upper control arm ball joint may not have achieved the correct torque due to variation in the alignment ...

Like the bushings above, they're pressed into the lower control arms and secured with a cotter pin. If a lower ball joint ...