1966 Barracuda rocker trim clips

1966-67 Charger 65 Coronet 500 & 1967 Coronet & 66 Barracuda rocker molding CLIP | eBay

I heard it said that these fill fit with some small modification but I forget what had to be done. Any good photos ( with dimensions) of the original clip?

The Early A-Body Forum: 1966 Barracuda Rocker panel clip