GM Service Manual Online
For 1990-2009 cars only

Caster (1) is the inclination (tilt) of the king pin (2) or the steering axis either forward or backward from the vertical line (3).


Object Number: 200311  Size: SH

Incorrect caster may result from one of the following conditions:

    â€¢ Sagging springs
    â€¢ A bent axle
    â€¢ A twisted axle
    â€¢ Uneven tightening of the spring U-bolt nuts

Tighten all of the U-bolt nuts equally. Refer to Fastener Tightening Specifications . The caster will be unequal for the right and left sides if the axle is twisted.