Web sources for wheel cylinder dust covers based on Rob's numbers:
https://www.bigmikesmotorpool.com/co...ns/m35a3-parts
https://www.easternsurplus.net/PartD...linder-Shields
https://www.wbparts.com/rfq/2530-00-030-1408.html They don't sell parts but the cross to Meritor number might be useful.
The M35 shields seem a bit more open in the corners than the original Ford shield but if Ford is unavailable and M35 is available and fits.....