Under Body 67-68-69 Camaro/Firebird Frames Basic Dimensions.
These are the Basic measurements from Fisher Body Specs and are modified, to correct printed errors in the Fisher Body manual. All measurements are center to center unless otherwise noted. Car must be setup on a level surface, for accurate measurements.
Factory Tolerance plus or minus 1/8 inch.
Note: Your car may measure out differently. This is due to difference in measuring methods used. Most important is that the car is square and level to its self.
Note: A Tram Gauge is recommended for more accurate results, the supplied diagram is for basic building references to help with frame mounting and alignment questions, and measurements are a must when installing SUBFRAME connectors for them to be the most effective