1967/68 camaro/firebird coupe upper rear body panel size?
 

Was hoping someone here would know what the dimensions are of the rear fill panel. The panel sits between the rear window and the trunk. I basically want to confirm if the panel I purchased is messed up or my car is off. The measurement I am looking for is just the width between the lines closest to the trunk sincs that is where it seems to be off the most. Appreciate the help in advance!

https://cimg0.ibsrv.net/gimg/camarof...ca2f273497.jpg

from the center, where the back glass molding two pieces meet I have 7.25"