K 1500 Suburban 4WD V8-6.5L DSL Turbo VIN F (1999)
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 D dimension.
9. Find the average of the high and low measurements. This is the true D dimension.
Important: True trim height is the average of the high and low measurements.