I like the wheels. As far as the size, I think you need a 285/30/20. That's about as tall as you can get in a 20" & still fit in your fender well's. Here is a site you can play with to see what might fit, my 285/35/19's are .1" taller than what I suggested. -http://www.rims-n-tires.com/rt_specs.jsp