Steering and Suspension
The steering wheel is connected to the steering system, which includes components such as the steering column, rack and pinion, tie rods, and ball joints. The suspension system consists of parts like springs, shock absorbers, struts, and control arms.
A vehicle's steering system is a vital part of a vehicle's ability to move. The main functions of the steering system is to provide vehicle turning per will of the driver, directional stability, it converts the rotary movement of the steering wheel into an angular turn of front wheels, and absorbs road shock from being transmitted to a driver's hands.
The primary function of your cars suspension and steering systems is to allow the wheels to move independently of the car, while keeping it "suspended" and stable. Any play or uncontrolled motion in these systems results in a deterioration of handling and accelerated tire wear. Vehicle alignment is closely tied to the condition of the suspension and steering systems.