Bushes: Suspension bushes keep vibration to a minimum between suspension components. These essential bushes can be found in the following suspension & steering items; control arms, shock absorbers mounts, sway bars, sway bar links etc. Bushes require replacement when worn to avoid detrimental ‘metal-on-metal’ contact between components. Bushes become worn for a number of reasons like age, heat, element exposure incl salt and oils, heavy loads & abnormal stress due to frequent movement.
Ball Joints: A ball joint is responsible for holding the front suspension together. With its pivoting movement, the ball joints enable the wheel and suspension to move freely together in all directions. Ball joints can be separated into 2 categories; load-bearing or the following type. This varies between vehicles based on their suspension setup. Load-bearing ball joints tend to wear out quicker than the following type ball joints.