E 350 1 Ton Van V10-6.8L VIN S (1997)
Alignment: Description and Operation
Caster and Frame Angle (Positive Caster Shown)
CASTER
Caster is the deviation from vertical of an imaginary line drawn through the ball joints when viewed from the side. Caster is directly affected by frame
angle. Frame angle is measured at a flat area of the frame forward of the rear wheels and will vary with vehicle loading. The caster specifications will
give the vehicle the best directional stability characteristics when loaded and driven. The caster setting is not related to tire wear.
Negative and Positive Camber
CAMBER
Camber is the vertical tilt of the wheel when viewed from the front. Camber will not vary with frame angle. Camber can be positive or negative and
has a direct effect on tire wear.
Econoline caster and camber correction requirements are factory-determined. Adjusters are available to correct a caster/camber measurement that does
not meet specification. Before changing the production caster/camber adjuster, thoroughly inspect the suspension system to locate worn or damaged
components that may have caused the setting to change.
Positive Toe (Toe In)
