I had just bought some recently. My radiator shield went missing while being serviced at the stealership. I bought the replacement shield from a salvage car at a yard on ebay. Anyway, for those retainers, the Ford parts guy first told me they were discontinued. But then he said, wait, he would check his warehouse. And the warehouse had some so he ordered them and they came in a few days. Just like the originals and fit perfectly. I'll have to go check the part number.
2003 Mercury Marauder 300B (Daily Driver)
1988 LTD Crown Victoria S