Looking for a pair of 235-255  70 15" wide white walls  3" tires. Prefer radial tires.

good luck i.ve been looking for white walls for my car a new set nobody carrys them anymore

A friend is restoring a 1976 Cadillac and he got them State-side, he has a b ad relationship with Coker and avoids them:

http://www.americanclassictires.com/

https://www.dbtires.com/why_choose.html

You could also call in Canada : www.queenswaytire.com/classic-tire-rims.htm