Ok, hold on, I see where the train left the tracks... when I read your post the first time, the word "deluxe" jumped out at me. But I now see you say you have 'standard' seatbelts. The 'standard' belts for '67 do have the GM sticker on them. It's the '67 'deluxe' belts that have coach on them.
Clear as mud?
I attached a picture of a '67 standard belt with the GM sticker, and a picture of a '67 deluxe with coach. Sorry for the confusion, must be Monday. (or Friday) ... Wait, what day is it???
I used to be indecisive. Now I'm not sure. I feel like I am diagonally parked in a parallel universe. 1968 400 convertible (Scarlet) 1976 T/A - 455 LE (No Burt) 1976 T/A New baby, starting full restoration. 1968 350 - 4 speed 'vert - 400 clone (the Beast!) 1968 350 convertible - Wife's car now- 400 clone (Aleutian Blue) (Blue Angel) 2008 Durango - DD 2008 GXP - New one from NH is AWESOME! 2017 Durango Citadel - Modern is nice! HEMI is amazing! 1998 Silverado Z71 - Father-daughter project 1968 400 coupe - R/A clone (Blue Pearl) (sold) 1967 326 convertible - Sold 1980 T/A SE Bandit - Sold