This is the tire decal on my Hertz G (2/29/1968) glove box. I can’t guarantee that the glove box is actually original to the car. The part number on it is: C8WA-1532-B
You would think that the part number starting with C8WA would indicate a 1968 ford part, but I have a couple original 1969 Mustangs that actually have D0ZA-1532-C decals on their doors, which you would think indicates a 1970 part.
I suppose I should buy the 67’s and be happy with it, but it would be nice to know as they are a big pain in the butt to remove once installed.
I can’t speak for Cougar yet, but there are repo decals for Mustang with the part numbers on them. My only purchases at this point are for 1969’s though…..