headliner bows 71' dart

i have a set out of a 67 dart. classic shows them to be the same 67-72. if you want to look into that some more and confirm?
Classic is wrong, no surprise. All 1970 and older use the cups and all 71 and newer have angled ends and don't use the cups. All models, A,B and E. For some reason the makers of the reproduction bows can't figure this out.
I might have a 71 set. I'll check.