This thread has been helpful on the standard 68 wheel! It clears up some confusion for me. I noticed in some of the 68 literature that it shows the 67 standard wheel on various models so I made a broad assumption it also went with the 68 birds. Now I know that I can add another impossible and most likely expensive item to my 68 Aegean coupe restoration.
1968 Pontiac Firebird 400 Convertible - April Gold/Deluxe Black Automatic 1968 Pontiac Firebird 400 Coupe - Aegena Blue/Standard Teal 4 speed 1968 Pontiac Firebird 400 H.O. Convertible - Alpine Blue/Deluxe Teal Automatic 1968 Pontiac Firebird 400 Coupe - Autumn Bronze/Deluxe White 4 speed