Wishbone Suspension System:

• The wishbone type is the most popular independent suspension system.
• It consists of two (occasionally parallel) wishbone-shaped arms to locate the wheel. Each wishbone or arm has two mounting points to the chassis and one joint at the knuckle.
• The shock absorber and coil spring mount to the wishbones to control vertical movement.
• The vehicle weight is transmitted from the body and the cross member to the coil spring through which it goes to the lower wishbone member.
• The wishbones not only position the wheels and transmit the vehicle load but also rest acceleration, braking and cornering forces.
• The upper arms are shorter in length then the lower ones. This helps to keep the wheel track constant thereby avoiding the tyre scrub thus minimizing wear.

Objects of Suspensions:

• To prevent the road shocks from being transmitted to the vehicle components.
• To safeguard the occupants from road shocks.
• To preserve the stability of the vehicle in pitching or rolling while in motion.
• To provide required height to body structure as well as bear the torque and breaking reaction.
• To keep the body perfectly in level while travelling over the uneven road.