my Chapparal Steel Radial A/Ps are 33x12.50x15s. I figured out why they fit so well on the stock suspension, I measured and they are only 31 1/4 tall inflated. I must say though if you want a tire on your stock suspension that looks really good(are 11 something wide) and performs pretty well theses things are great. Anyone heard of this brand before? I see them around on trucks all the time but never see them in stores. mine came with my truck and every person I ask who has them theirs were on their truck when they bought it!