Trim Height

Z HEIGHT
Trim height is a predetermined measurement relating to vehicle ride height. Incorrect trim heights may cause symptoms similar to alignment problems. Check the trim heights when you diagnose steering or vibration complaints.

The Z dimension measurement determines the proper ride height for the front end. The Z dimension is not adjustable and could require replacement of suspension components.





Measure from the center line of the front lower control arm bolt down to the lower inboard corner of the ball joint. Trim all Z heights at 67.0-79.0 mm (2.6-3.0 inch).

Z HEIGHT JOUNCE METHOD
Measure the Z height using the following procedure:





1. Lift the front bumper of the vehicle up about 38 mm (1.5 inch).
2. Gently remove your hands. Let the vehicle settle by itself.
3. Repeat the jounce operation two more times for a total of three times.
4. Measure the Z dimension.
5. Push the front bumper of the vehicle down about 38 mm (1.5 inch).
6. Gently remove your hands. Let the vehicle rise by itself.
7. Repeat the jounce operation two more times for a total of three times.

IMPORTANT: True trim height is the average of the high and low measurements.

8. Measure the Z dimension.
9. Find the average of the high and low measurements. This is the true Z dimension.

D HEIGHT
The D dimension measurement determines the proper rear end ride height. There is no adjustment procedure. Repair may require replacement of suspension components.





Measure from the bumper bracket down to the top of the rear axle housing tube. Trim D heights at or between 131.5-161.5 mm (5.2-6.4 inch).

D HEIGHT JOUNCE METHOD
Measure the D height using the following procedure:





1. Lift the rear bumper of the vehicle up about 38 mm (1.5 inch).
2. Gently remove your hands. Let the vehicle settle by itself.
3. Repeat the jounce operation two more times for a total of three times.
4. Measure the D dimension.
5. Push the front bumper of the vehicle down about 38 mm (1.5 inch).
6. Gently remove your hands. Let the vehicle rise by itself.
7. Repeat the jounce operation two more times for a total of three times.

IMPORTANT: True trim height is the average of the high and low measurements.

8. Measure the D dimension.
9. Find the average of the high and low measurements. This is the true D dimension.