The rack and pinion assembly is an important part of the vehicle’s steering system. This assembly basically transfers the rotational force from the steering wheel to the front wheels of the car. Modern cars have either hydraulic or electric power steering. At its good operating state, a driver can turn the front wheels with less effort. Because of tears and punctures, lack of regular aftercare- the rack and pinion can fail. The replacement can be costly. But you have to replace the bad rack and pinion, else the steering will be compromised.