Suspension is the system of tires, tire air, springs, shock absorbers and linkages that connects a vehicle to its wheels and allows relative motion between the two. … The design of front and rear suspension of a car may be different. A suspension system takes a tremendous “pounding” during normal vehicle operation. Bumps and potholes in the road surface cause constant movement, fatigue. and wear of the shock absorbers, or struts. ball joints, bushings, springs, and other components. Suspension system problems usually show up as abnormal noises (pops, squeaks, and clunks), tire wear, steering wheel pull, or front end shimmy (side-to-side vibration). Suspension system wear can upset the operation of the steering system and change wheel alignment angles. Proper service and maintenance of these components greatly increase roadability, reliability, and vehicle life..