Wheel alignment is arguably the most important aspect of wheel and tire maintenance. Driving without proper alignment costs you money. Not only does flawed alignment decrease gas mileage and tire life, but it also adds stress to your vehicles steering equipment and structure. Ideally, your vehicles wheels should run perpendicular to the ground and parallel to each other. Three angles promote proper wheel alignment: caster, camber, and toe. A faulty caster angle causes loose or difficult steering. A faulty camber angle will create pulling and tire wear. A faulty toe angle will wear down your tires. Adjusting these wheel angles will bring you vehicle back into proper alignment.