As these are the used actual rings off of our cars that WCCC had in their lot, they're the correct part for the car, in my case a '68. Unlike other brands and models of cars that use this setup for retaining headlight bulbs, the Cougar uses only two screws per ring plus a small spring as the third retaining point. If you're replacing a burnt out bulb, while the headlight cover is down, reach back and unplug the bulb that needs replacing(it's difficult to do when the cover is up). The '67 Cougar owner handbook has instructions and under the hood are releases for getting the covers to move out of position so that you can access the bulbs. On the '68, there are no releases and nothing in the owner handbook to advise you on how to move the covers. The shop manual(if you have one) tells you to first pull out the headlight switch knob as though you'd normally turn on the headlights. Then you may gingerly(by hand) pivot up the cover you need to move, and it will stay up while you're changing the bulb and/or the retaining ring. it took about 45 minutes to change one retaining ring for me, part of which was spent re-positioning the HL aim adjustment ring that the retaining ring mounts to. If your aim adjustment ring is properly attached, it'll take you less time. The package of rings came with all of the tiny screws you'll need to affix the retaining rings. I recommend using a magnetic Phillips screwdriver to keep the screws attached while swapping rings, as the tiny screws often get knocked off and lost inside the bumper/grille if you're not using a magnetic driver.