Well, stencils and stripes will tell you there is no difference, as that is the numbers they have from GM. That is what they told me when I ordered up my whale stripe for my 72.
I know that the deck lid GTO is smaller than the fenders/quarters. I need a smaller set, but I haven't delved into that any farther. I haven't looked at the PY, year ones yet to see if they offer the smaller trunk.
I'd be interested to see the postings here have to say. Well, I'm a lot of help
