Tram Gauge Method
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2003 GMC Savana Special, 2003 GMC Savana Camper Special, 2003 GMC Savana, 2003 Chevrolet RV Cutaway, and 2003 Chevrolet Cutaway. However, it is still accessible from the selected car via links, so may be relevant.
- Use a tram gauge as a quick reference in order to determine vehicle damage. Use a tram gauge set with a vertical pointer capable of reaching 914 mm (36 in).
- Make the engine compartment component measurements from point to point with the vertical pointers equally set.
- Make the other measurements on the horizontal plane, or the datum line, parallel to the underbody with the vertical pointers set as specified for each point.
- Measure dimensions that are measured to the gauge holes to the center of the holes and flush to the adjacent surface metal unless otherwise specified. Cross-check the diagonal dimensions in order to verify the dimensional accuracy of the vehicle underbody.