Vehicle alignment is the process of physically adjusting a vehicle’s wheels and bearings to their ideal alignment. A vehicle’s wheels are aligned to the road for traction and stability when traveling by the manufacturer’s recommended speed limit. Alignment is used on all four wheels of a vehicle.

Alignment is an important process in vehicle production because of the importance of a perfect ride for customers and automotive industry workers standing in traffic or a work area.

A vehicle alignment system is a set of mechanical devices used to maintain a vehicle’s wheels and bearings in their ideal positions. One type of alignment is a line-and-cast type, which uses a cast wheel alignment device that forces a line between the wheels and bearings to keep them perfectly aligned. This method is most commonly used on cars since the strength of a car’s chassis cannot be easily compromised. The alignment is usually performed on trucks using a hydraulic machine that forces the cast aluminum wheels into their proper position.