There are three main types of wheel alignment adjustments:
* Toe: This refers to the angle at which the wheels point relative to each other from a top view. If the wheels are pointing in, the toe is said to be "toe in," and if they are pointing out, the toe is said to be "toe out."
* Camber: This refers to the angle at which the wheels tilt when viewed from the side. If the wheels are tilting outward at the top, the camber is said to be "positive camber," and if the wheels are tilting inward at the top, the camber is said to be "negative camber."
* Caster: This refers to the angle at which the steering axis is tilted from a vertical line. Caster affects the responsiveness of the steering and the stability of the vehicle at high speeds.
Wheel alignment is typically adjusted using a specialized machine called an alignment rack. The rack will measure the current angles of the wheels and then make the necessary adjustments to bring them into alignment.
Wheel alignment should be checked and adjusted regularly, typically every 12,000 to 15,000 miles. However, alignment may need to be adjusted more frequently if the vehicle has been in an accident, has hit a curb or other object, or is exhibiting symptoms of misalignment, such as:
* Uneven tire wear
* Pulling to one side while driving
* A vibrating steering wheel at high speeds
* Difficulty steering
If you are experiencing any of these symptoms, it is important to have your wheel alignment checked and adjusted as soon as possible.