Suspension

Almost all joints and pivots in a modern suspension system have rubber or plastic bushes, with the possible exception of steering swivel joints . Read more

Leaf springs are likely to wear because they have several moving parts. They should be inspected at intervals specified by the car manufacturer, or at major service intervals - usually every 12,000 miles (20,000 km). Read more

When the damper inside a MacPherson strut wears out, you can buy a replacement cartridge which — depending on type — may or may not include new parts for the strut itself. Read more

The forces imposed on the anti-roll bar subject it to constant twisting and flexing, which in turn put its various rubber mounting bushes under great load. The bushes gradually wear and lose their effectiveness. Over a period of years the rubber hardens and tends to crack. Read more

There are various ways of attaching the wheels of the car so that they can move up and down on their springs and dampers , and do so with as little change as possible in the distance between adjacent wheels or in the near-vertical angle of the tyres to the road. Read more

The suspension system affects both the driver's control of the car and the comfort of the occupants. The springs allow the wheels to move up to absorb bumps in the road and reduce jolting, while the dampers prevent bouncing up and down. Various mechanical links keep the wheels in line. Read more