K 2500 Suburban 4WD V8-5.7L VIN R (1999)
Measure the Z height using the following procedure:
1. Lift the front bumper of the vehicle up around 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.
8. Measure the Z dimension.
9. Find the average of the high and low measurements. This is the true Z dimension.
Important: True trim height is the average of the high and low measurements.
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.
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 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.
