Replace One or Both Lower Control Arms?

[VonConnor]

Generally, only the lower control arm ball joint that needs replacement should be changed; there's no need to replace both simultaneously. The functions of the lower control arm ball joint include the following: 1. The lower control arm, commonly known as the lower suspension, primarily supports the vehicle body and shock absorbers while cushioning vibrations during driving. Shock absorbers provide excellent auxiliary support to the lower suspension. 2. The harmonious cooperation between shock absorbers and springs forms an outstanding suspension system. If the lower control arm bushing is damaged, replace the bushing; if the lower control arm ball joint is damaged, replace the lower control arm. Under normal driving conditions, the lifespan of a lower control arm typically ranges from 80,000 to 250,000 kilometers, depending on the road conditions. 3. The suspension's guidance and support functions are crucial. Any deformation can affect wheel alignment, reducing driving stability. If there's an issue with the front control arm, symptoms may include steering wheel wobbling, a tendency for the vehicle to drift when hands are off the wheel, and difficulty maintaining direction at high speeds.