FixVault

Wheel Alignment Angles: Caster

Fig 1: Identifying Caster Angles
GF0002950Courtesy of FORD MOTOR CO.
Item Part Number Description
1 - True vertical
2 - Positive caster angle
3 - Shock-to-ball joint centerline
4 - Pivot centerline

Caster is the deviation from vertical of an imaginary line drawn through the ball joints when viewed from the side. The SPECIFICATIONS  will give the vehicle the best directional stability characteristics when loaded and driven. The caster setting is not related to tire wear.