If you could still get a 195/75-15, which is 26.5" tall (approx), I'd say try that. Tall and thin. But, I can't find them anywhere any longer, so maybe a 205/75-15, which is 27" tall (again, approx). It fits on anywhere from a 5" wide to a 7" wide rim, I believe. Might need to do a little trimming, though, I'm not sure. Try test fitting first.