Young Gun's 72 Swinger

And
In my mind the fact that they showed where to make the mount points so nothing got in the way or bound up when opened or closed was the most important info they showed.
Can't make many mistakes on those skinny little arms.

And even if you did, arent the trunk hinge arms the same on all darts , valiants and scamps from 1967 to 1976. Still pretty easy to get replacements. I doubt those are a fast mover on parts cars LOL.