Thanks GDAD.
It looks like these are 6 volt (would a 6 volt LED be usable for 12volt?).
Anyway, I had ordered some LED bulbs off amazon when I ordered the sockets ( Michigan motorsports sells on amazon too), I got blue & white to see how they
look.
I think one has to be careful of the size of the bulbs, some look too long.

These blue ones are surely short enought, & look like a fit to the sockets you suggested:
https://www.amazon.com/dp/B08372TKMB?ref=ppx_yo2ov_dt_b_product_details&th=1

White:
https://www.amazon.com/gp/product/B08R5Y275S/ref=ppx_yo_dt_b_asin_title_o02_s01?ie=UTF8&th=1

Thanks !