Component Tests and General Diagnostics

The vehicle suspension height must be measured and adjusted if necessary before performing wheel alignment on a 4x4 vehicle. Also when front suspension components have be replaced. This measure must be performed with the vehicle supporting it's own weight and taken on both sides of the vehicle.

HEIGHT MEASUREMENT
1. Inspect tires for the correct size and air pressure.
2. Jounce the front of the vehicle.

Height Measurement:

3. Measure and record the distance between the ground and the center of the lower suspension arm rear mounting bolt head.
4. Measure and record the distance between the ground and the center of the front wheel.
5. Subtract the first measurement from the second measurement. The difference between the two measurement should be 47 mm (1.85 inches) ± 3.25 mm (0.125 inches).