Your car's suspension is composed of a system of shock absorbers, springs and linkages connecting the vehicle body to its wheels. It contributes to the car's brakes and handling. There are two general types of suspension: independent and dependent. It refers to the opposite wheel's ability to move against or towards each other.
Independent suspensions, several subtypes, including double wish bones, multiple links and McPherson struts. Independent suspension is said to be more comfortable and capable of grip on different surfaces. It allows the wheels to rise and fall on their own without affecting the opposite wheel. Some suspension devises link the wheels are still classified as independent, an example of this is the sway bars.
Dependent suspensions include types such as rigid axles and torsion beams. These are more versatile and is also cheaper. It usually has a boom or a live axle that keeps the wheels parallel to each other and perpendicular to the shaft. When the camber of one wheel changes, camber of the opposite wheel follows the same direction. Dependent suspensions are most common on vehicles that carry large loads.
There is a third type as semi-independent. Here is the proposal for a wheel affects the location of the other, but they are not firmly attached to each other. A twist-beam rear suspension is an example of this system.
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