Windshield clip question

Ok so I just received a set of windshield clips and they are not the same as the ones on my car.The center section looks to be the same but the old ones has an extra (2) arms if you will,making them wider at the base.The new ones look just like the ones in the Year One catalog for a 70 dart.So my question is did they change the design of the dart clips or is this just a way to pass off a similar psrt as universal?I was hopeing to get an answer with out pics,just because posting pictures seems to annoy me but I will if its needed.