Have you ever been to a shop that suggested a tire alignment? This service is usually brought up when a vehicle gets new tires or work is done to the steering and suspension.
Alignments are also needed once a year and if they are thrown off by certain road conditions, such as curbs, potholes and speed bumps. A bad car alignment can be indicated through uneven tire wear, a crooked steering wheel, and a vehicle pulling to one side.
Through regular wheel alignments, you can make sure your tires are wearing evenly and last as long as possible.
There are a couple of different types of wheel alignments and the process itself can vary from car to car.
What are the different kinds of alignments?
The two kinds of alignments are four-wheel alignments and two-wheel alignments (also known as front-end alignments).
Four-wheel alignments are performed on a lot of cars found on the road today. They are done on four-wheel drive vehicles.
Front-end alignments are typically needed on anything with a solid rear axle, such as pickup trucks and larger SUVs.
We perform them on front-wheel drive vehicles, as well. Front-wheel drive vehicles have a solid rear beam that normally doesn’t have adjusters. For example, certain Volkswagens need a two-wheel alignment, but some of the sportier Volkswagens have adjustments in the rear.
Now, they are coming out with independent rear axles, where there are CV axles in the rear. Some of the independent rear drivelines have adjusters and others do not.
What happens during a tire alignment?
The tire alignment process begins with a test drive and visual inspection to make sure that no problems are missed.
When conducting an alignment, our technicians rotate the tires before putting the vehicle on a rack.
To the wheels, we attach targets, which are read by a CCD camera. Adjustments are made based on the manufacturer’s recommendations.
We always start with the rear and go right (passenger’s side) to left (driver’s side).
What angles are checked during a tire alignment?
The measurements we focus on are caster, camber and toe. Thrust angle and ride height are other items we can check.
Here’s what those different terms mean:
- Caster: The way the wheels tilt to the front and rear of a vehicle.
- Camber: How the wheels are angled inward and outward.
- Toe: Based on the center of the car, how much the wheels are to the left and right.
- Thrust angle: This looks at where the rear axle is positioned in relation to the front axle and vehicle’s center.
- Ride height: The clearance between the ground and the bottom of the vehicle.
How does the four-wheel and front-end alignment process differ?
The concept for two-wheel and four-wheel alignments is the same.
However, the adjusters are different on every single car. That’s the biggest difference. Some cars have rear tie rod ends and there can be adjusters on the control arms themselves. Sometimes, adjustments need to be made to trailing arms. It really depends on the vehicle.
How long a tire alignment takes also varies. European vehicles can require more time due to the adjustments. Also, they usually have more splash paneling that may need to be removed.













