Operation CHARM: Car repair manuals for everyone.

Toe-In






Linear sum toe-in exists when the distance between the front wheels is less at the front of the axle than at the rear of the axle. Angular toe-in is the angle of the front-wheel centerline, relative to the intersection of the forward projected vehicle center line.

The actual amount of toe-in is normally a fraction of a degree. Toe-in is measured from the center of-the tire treads or from the inboard side of the tires. The purpose of toe-in is to assure parallel-rolling of the front wheels and. to offset any small deflections of the wheel support system which occurs when the vehicle is rolling forward. Incorrect toe-in results in excessive tire wear and unstable steering. Toe-in is the last alignment to be set in the front wheel alignment procedure.