The belts were installed by Fisher before the broadcast sheets were printed. So the belts are not on the broadcast sheets.

Belt color info is here: http://www.camaros.org/seatbelt.shtml#color
It was similar for Firebird.
A red interior got black standard and I thought a red interior should have red deluxe belts. ??? I don't have 68 Firebird color info to confirm that, but Jim's car has black deluxe. Hmmm....