Checking wheel toe is also done with the tires sitting on
the turning radius plates. Make sure the tires are straight
ahead and the plates are at zero degrees before removing
the locking pins on the plate. Then install a steering
wheel clamp to prevent the steering wheel from moving.
Then install the brake pedal lock. Remove the hubcaps
and grease caps from the front wheels. Iounce the front
suspension several times to allow it to stabilize. Note the
location of the steering gear. If the steering linkage is at
the rear of the front wheels, push outwardly on the rear
of the tires. If the linkage is to the front, push on the front
of the tires. Mount the optical toe gauges onto the
front wheel hubs. Use the level indicators on the gauges
to make sure the gauges are level. Then read wheel toe
on the gauges and compare them to specifications.