Measuring Wheel Alignment
ALIGNMENT SPECIFICATIONSIMPORTANT: When measuring alignment angles, it is critical that vehicle curb trim height be within specifications. If not correct, add or remove weight until trim height is correct.
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 bounced 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
207 kPa (30 psi) tire pressure - Front Tires
179 kPa (26 psi) tire pressure - Rear Tires
3. Check frame-to-body alignment at the two front frame alignment holes using a 9/16 inch rod. If frame-to-body alignment is not correct, loosen frame fasteners and align frame-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.
(L) - (R) = CROSS
For example:
