D Height Measurement

The D height dimension measurement determines the proper ride height of the rear end of the vehicle.

1. Jounce the rear suspension of the vehicle by pushing the vehicle down and lifting up.
2. Allow the vehicle to settle and take a measurement.

3. Courtesy of GENERAL MOTORS COMPANY

   Measure the D height dimension from the bottom surface of the inner adjust link bushing at the frame (1) to the center of the lower trailing arm to knuckle bolt (2).

4. Compare the recorded readings with specifications. Trim Height Specifications 
5. If any of these measurements are out of specifications, inspect for the following conditions:
   • Worn or damaged suspension components
   • Collision damage