A lot of cars built in the late '70's and into the '80's that were built around a tire like the 12.2x31.25 or the older 14x32's are running the Hoosier 31.5x12.5 DO5 tire.
It's a stiff sidewall tire.
Check the website for the size info.
http://www.hoosiermidatlantic.com/su...subCat=2&cat=1