Measuring Alignment Angles
IMPORTANT: When measuring alignment angles, it is critical that the vehicle curb trim height be within specifications. If not correct, add or remove weight until trim height is correct. Refer to CURB TRIM HEIGHTS.IMPORTANT: When performing a wheel alignment after any suspension system component removal and installation, the vehicle must be driven and/or the suspension system worked (manually jounced at least 20 times) to allow components to locate properly before alignment adjustment.
1. Install alignment equipment in accordance with the equipment manufacturers instructions.
2. Adjust tire pressures to correct specifications
A. 207 kPa (30 psi) tire pressure - Front Tires
B. 179 kPa (26 psi) tire pressure - Rear Tires
3. Check cradle to body alignment at the two front cradle alignment holes using a 9/16 inch rod. If cradle to body alignment is not correct, loosen cradle fasteners and align cradle to body.
4. Measure alignment angles for each wheel.
Cross camber and cross caster specifications refer to the difference between the left and right side angles. Cross camber and cross caster can influence vehicle steering pull tendencies. Usually, alignment results will be best when these measurements are as close to zero as possible.