When I compare the clips on my 1970 duster to your picture, I have 19 of the ones on the top left, and 4 of the ones on the top right. The 1974 duster has 21 of the ones on the bottom left and 2 of the ones on the top right. Hopefully someone has the information to finally clear this up. It looks like a bunch of people have run into this issue in the past.
