Steering Axis Inclination
This is a check for bent or damaged parts, and not a service adjustment. Vehicle must be level (crosswise and lengthwise) and camber should be properly adjusted. If camber cannot be brought within limits and steering axis inclination is correct, steering knuckle is bent. If camber and steering axis inclination are both incorrect by approximately the same amount, upper and lower control arms are bent. Replace parts, and recheck all front end adjustments.
CAUTION:
Do not attempt to correct by straightening parts.