Here I have 2 sets of center caps. I think one set is 72-74 and the other is 75 and up, as I can't remember what year started with the removable button. Both are driver quality that have flaws. Not all mounting screws present and one of the later style looks like it has been repainted as it looks like the earlier dark argent. Please look at the pictures and see for yourself. I would like $75 shipped in a large flat rate box from Puyallup WA.
