Cokers are one company that makes them but they are waaaaay expensive on their price when i checked them about $200 a piece!

I found another company that made them last summer when i was restoring my moms 66 t bird and only paid $80 a piece for the 3.5" whitewall. If i remember correct i think the same tire in a radial was only $120 from this company. I cant remember the brand the tires i bought for her bird are off hand but i'll call her tommorow and post what they are tommorow for you.

heres a pic of the them