While going through my Dart parts I found a pair of 64, 65, or 66 Barracuda seat latch retainers with covers. The covers are a little chalky but definitely serviceable as is or lightly sand and paint in your choice of color. I understand the covers tended to disintegrate over time; these are still nice and solid other than being a little chalky. They include the metal receiver end to secure the latch. They were originally chrome plated and now have some surface rust here and there. Asking $60 shipped to any US Zip code
