A method for measuring and aligning front and rear wheels of a four wheel
vehicle, including measuring alignment properties of the front wheels,
and correcting alignment properties of the rear wheels if all of the
measurements of the alignment properties of the front wheels are
substantially equal to the manufacturer-specified alignment properties
for the front wheels. If all of the measurements of the alignment
properties of the front wheels are not substantially equal to the
manufacturer-specified alignment properties for the front wheels, then
the alignment properties of the front wheels are corrected prior to
correcting alignment properties of the rear wheels. The measurements of
the alignment properties can be made using a computer-aided,
three-dimensional machine vision alignment apparatus.