I hope this will help, I took these measurements 30 years ago off my original untouched factory shaker. I wanted to paint it at the time and decided to remove the badges to do that, as I had several NOS sets of Cobra Jet badges and wanted to make sure the new ones went back on in the correct location. Believe it or not this piece of paper has been stuck to the side of my toolbox for that long, goes to show how well sticky notes actually hold on. And FYI these measurements are off a Sept 69 Dearborn built 1970 Mach1.