Frame Reference Point Description

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2003 GMC Yukon XL, 2003 GMC Yukon, 2003 Chevrolet Avalanche, 2003 Cadillac Escalade EXT, and 2003 Cadillac Escalade ESV. However, it is still accessible from the selected car via links, so may be relevant.

Reference points are locations on a vehicle which correspond to specific measuring points. Use the reference points when checking the vehicle structure.

Dimension charts may use the center of a hole, bolt head, or nut, etc. as a reference point. A description and location chart will tell you how and where the measurements should be taken. The most accurate reference point is a gauge hole or a control hole used by the assembly plant in order to control tolerances when the vehicle was built. Refer to FRAME CONTROL HOLE DESCRIPTION on for more information about control holes.