I ended up ditching the plastic clips and using all spring type like the 71 back used. I bought the plastic clips from a couple places and all were just barely too big to snap on the trim.
Have you tried yours yet to make sure they fit the trim?
I tried after seeing this last night, and yep didn't fit. But a little box knife and a steady hand and it fits fine now! Its wings on the sides are just shaped wrong for the trim, the new box blade made quick work of the problem! But with 10 to do, might take me a bit.......
