hi go to
tire rack on the web. see what they say, after you input all the info.
you can also ask your dealership, what tire's can go on?
for whatever you are looking for off road, rain, mid, highway, city etc.
also the smallest or the largest without it hitting the wheel well's.
you can also check with local tire shop's, for all your question's.
i to had a issue with my 20" rim's. and i did alot of research,
& found better than i ever expected.
and now i'm happy forever as long as they keep on making them.
good luck,
gorilla