● Caster - A wrong caster angle can make it challenging to drive your car as you will not get the proper ‘feel’ or ‘feedback’ on the steering wheel. Caster is the steering pivot angle(horizontal) which you can view from the side. Thus, it is the angle between the lower and upper ball joint of the steering mechanism of the wheel assembly.
In most vehicles, it is necessary to have a positive caster of 3-5 degrees for better handling. However, in the case of heavier vehicles such as trucks, it is better to set a negative caster angle.
● Camber - Camber is the vertical angle between the road and the wheel of the car, which can be checked from the front or rear end of the car. The number one reason for improper tire wear is an incorrect camber angle as this angle determines how much the tires will come in contact with the road.
If the tires lean towards the chassis of the vehicle, it is known as a negative angle. The opposite is true for a positive angle. It is imperative to maintain the proper camber angle as it will help you to drive safer by maintaining the appropriate steering control.
● Toe - Toe is the angle formed between each of the four tires of your cars when it points forward. Ideally, the wheelsets of your car should have a parallel angle between them.
If the pair of wheelsets on your car points toward each other, it is known as a ‘toe-ins’ angle. If the wheelsets point outwards from each other, it is known as ‘toe-outs.’ A faulty toe angle will cause more tire wear and make it difficult to drive your car.