I found 14" rims for my 1960 Thunderbird at a used rim supplier in Spokane, WA. This supplier must have had 2,000 rims in his yard. He supplied snow rims for WA, and ID.
I think the difference is in the off set. It's not much but just enough to clear the calipers. The disc brakes make all the difference in the world to stop the 1960 Thunderbird.
Is there some way to tell what car the rims came off of by the rim? When things warm up I can get some pictures of the back side of the spare tire, and try to post them with help from Dave Dare. There might be pictures on the TRL. of the off set.
I think the rims I found came off of a Mustang that came with disc brakes.
Time for Notre Dame football.
Thunderbird Redistry #39303