Diesel Data: Automotive Repair

Front Caster and Camber Adjustment


Camber is the tilting of front and rear wheels from the vertical when viewed from front of vehicle. When wheels tilt outward at top, camber is positive (+). When wheels tilt inward, camber is negative (-). Amount of tilt is measured in degrees from the vertical and this is camber angle.

Caster is tilting of the front steering axis either forward or backward from the vertical (when viewed from side of vehicle). A backward tilt is positive (+) and a forward tilt is negative (-). On short and long arm type suspensions you cannot see a caster angle without using a special instrument, but if you look straight down from the top of the upper control arm to the ground you would find that ball joints do not line up (fore and aft) when a caster angle other than 0° is present.

Caster and camber angles are pre-set and cannot be adjusted. If caster and/or camber are out of specifications, the cause must be found. If worn or damaged suspension components are the cause, they should be replaced. If problem is body related, the body should be repaired as needed.