Envoy 4WD V6-4.3L VIN W (1998)
Measure the Z height using the following procedure:
1. Lift the front bumper of the vehicle up around 38 mm (1.5 in).
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 in).
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 trial height is the average of the high and low measurements.
8. Measure the 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. Even though the D dimension is the same for RWD and S4WD vehicles,
the dimension differs between the utility and pickup models. There is no adjustment procedure. Repair may require replacement of suspension
components.
D Measurement
All vehicles require a measurement from the bumper bracket down to the top of the rear axle housing tube. Trim Utility D height at 130.8148.11 mm
(5.1 5.8 in).
Trim Pickup D height at 130.7161.5 mm (5.16,4 in)
D HEIGHT MEASUREMENT
Measure the D height using the following procedure:
1. Lift the rear bumper of the vehicle up around 38 mm (1.5 in).
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 tine front bumper of the vehicle down about 38 mm (1.5 in).
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.
