Trim Height Measurements
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, 2004 Chevrolet Cab & Chassis Silverado, and 2003 GMC Sierra. However, it is still accessible from the selected car via links, so may be relevant.
Trim height is a predetermined measurement relating to vehicle ride height. Incorrect trim heights can cause bottoming out over bumps, damage to the suspension components and symptoms similar to wheel alignment problems. Check the trim heights when diagnosing suspension concerns and before checking the wheel alignment.
Perform the following before measuring the trim heights:
- Make sure the vehicle is on a level surface, such as a alignment rack.
- Remove the alignment rack floating pins.
- Set the tire pressures to the pressure shown on the certification label. Refer to Label - Vehicle Certification (w/ RPO Z49) or Label - Vehicle Certification (w/o RPO Z49) in General Information.
- Check the fuel level. Add additional weight if necessary to simulate a full tank.
- Make sure the rear compartment is empty except for the spare tire.
- Close the doors and hood.