Kurt,
If I understand your post correctly, you're saying that in 1968, center seat belt (ie. 3 seat belts) in the front 'bench seat camaros?? Didn't it matter what transmission/shifter was installed? ie. with a 3-4 speed in the floor, it still had belts for a center front seat passenger?
ps.. man, if we'd known that when we were single, they would have sold lots more of them...