Things You'll Need:
- Camber gauge
- Trammel gauge
- Locknut wrench
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Step 1
Set the camber to a slightly negative setting to create increased stability and better handling.
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Step 2
Maintain a positive caster setting. Your car will track in a straight line. The caster line must intersect ahead of the tire on the ground.
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Step 3
Measure the toe-in by putting the instrument on all four tires at the same time. This will help get the steering wheel straight the first time you try.
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Step 4
Read the measurement in degrees of the steering pivot line from the front of the vehicle. The Steering Axis Inclination must be correct in order to prevent the bending of parts when turning the steering wheel of the vehicle.
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Step 5
Determine the included angle measurement by adding the SAI to the camber. Adjust the included angle so that it is the same from side to side. If you can't get the SAI and the camber to measure the same, then the steering knuckle is most likely bent.
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Step 6
Understand that scrub radius is the distance between the center of the tire and where the SAI intersects with the ground. Manipulate the measurement until the measurement is the same from side to side. If the scrub radius is not the same, the car will pull when driven at a high speed.
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Step 7
Check the riding height of the vehicle. Take the measurement in inches from the rocker panel to the ground. Riding height is not adjustable on all vehicles — only on vehicles with a torsion bar type spring.
