Can't find 'em. I picked up my '78 with no interior. No seat belts except for one shoulder belt that wasn't installed. Upon closer inspection, I couldn't find where the shoulder belt would bolt into the chassis. So I figured I was just blind and went and found a shoulder belt from another 280z. I made note of where they were bolted and returned home, only to find those points were not in my car. Not only are the points not there, even the trim on the passenger side doesn't show any sign of a shoulder belt bolting to it. Were there certain versions of the 280z that didn't come with a shoulder belt? Thanks in advance.