CTS V6-3.2L VIN N (2003)
4. Measure the D height by measuring the distance between the bumper bracket and the top of the rear axle tube.
5. Push the rear bumper downward to 38 mm (1.5 inch).
6. Gently remove your hands. Allow the vehicle to settle into position.
7. Repeat the jouncing operation 2 more times for a total of 3 times.
8. Measure the D height dimension.
9. The true D height dimension number is the average of the high and the low measurements.
10. If these measurements are out of specifications, inspect for the following conditions:
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Improper weight distribution
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Collision damage
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Worn or damaged suspension components
