I have this little hook that is about shoulder height just behind the passenger door of my '73 240z. Any idea what purpose this served?

Should I assume there was supposed to be one on the driver's side too? If so, if anyone has a spare one they'd like to get rid of, please let me know.

Thanks!

I think that's supposed to hold the shoulder belt.

I am no expert, but I use that hook to hang my seatbelt, since my '72 does not have fancy retractible seatbelts...

As has been mentioned, it's for hanging the shoulder belt. There should be a "D" looking loop on the adjusting part that takes up the slack of belt (once adjusted) and that's what slips into the clip.

FWIW

E

That's kind of what I figured - since there are no retractors on the shoulder belt. I'm torn between using this hook and hanging the belt from the clothes hook above the window. I haven't seen this part on Black Dragon or any of the other parts sites. Does anyone sell them?

Zcarsource.com has Seatbelt Hanger Clip listed, it's product number 28307501.

It says "Call for pricing and availability of this item."