Does anybody know where I can find the part number for a Deluxe Horn Cap Retainer for a 1965 Ninety Eight. I see lots of GM NOS and used retainers/retaining rings on eBay and elsewhere but since mine is missing, I'm at a loss to know the part number or physical characteristics.

 

Nevermind. I feel so silly. The clip inside the cap just grips the ends of the chrome horn levers after they're installed. Just push the cap on. Lol