I looked through my Kelsey-Hayes Wheel Catalogs from 1983 and 1990. The only information I could find was:
* NWRA number X-40179 is a Kelsey 48752 (although your photo does 58742. That’s odd)
* 48752 - in Remarks column, says USE X-40279
* NWRA number X-40279 is a Kelsey 81776
* 81776 in Remarks column shows Obsolete as far back as 1983)
I could not find any older catalogs online, but did find this website where the owner says he will try and help find information and part numbers. Hope this helps
https://vintagewheelcatalogs.com/kelsey/