Z Height Measurement

The Z height dimension measurement determines the proper ride height for the front end of the vehicle. No adjustments are possible and could require replacement of suspension components.

1. Jounce the front suspension of the vehicle by pushing the vehicle down and lifting up.
2. Allow the vehicle to settle and take a measurement.

3. Courtesy of GENERAL MOTORS COMPANY

   Set the top edge of the level (3) on the reference surface of the steering knuckle (4) and extend the level (3) directly under the front end of the front lower control arm adjust bolt (2).

4. While keeping the level (3) in contact with the reference surface of the steering knuckle (4), adjust the level (3) up/down until the bubble indicates it is horizontally level.
5. Measure the distance (a) between the center of the front lower control arm adjust bolt (2) and the top of the level (3) for your first measurement
6. Keep the top edge of the level (3) on the reference surface of the steering knuckle (4) and move the level (3) directly under the rear end of the front lower control arm adjust bolt (1).
7. Measure the distance (b) between the center of the front lower control arm adjust bolt (1) and the top of the level (3) for your second measurement.
8. Average the measurements (a) and (b) and record the results.
9. Repeat steps 4 through 9 for the opposite side.
10. Compare the results with specifications. Trim Height Specifications