Are these the wrong headliner bows clips? (Video)

That is just like my 73 Dart. Had cardboard headliner. Those clips will have to cut the slots for them. The bows that will work are from 71-72 Dart, they have a bend at the ends to fir the existing holes. Hard to find. Good luck. Al
I think I'll cut a small slot for the clips I have and try to make them work . I'll keep you all posted.