The steering system consists of a steering gear, steering linkage, a steering column and steering wheel. The two types of steering systems are used in today’s vehicles, rack and pinion steering and the conventional steering.
Rack and pinion steering transmits circular motion from the steering wheel to a pinion. Conventional steering transmits the circular motion from the steering wheel through a gear moves an arm through a back and forth arc which acts on a set of linkages to steer the wheels.
This kind of system can be found on most rear wheel drive cars, light trucks and full sized vans. The MacPherson strut suspension combines a coil spring and a shock absorber into a single unit on each side. The strut is attached to the body at the top and to a lower control arm through a ball joint at the bottom. It is commonly used on front wheel drive vehicles.