I once had 33 15.50's on my Jeep Wrangler, but I had avoided the spacers and went for deep hollow wheels, they give you better extention and are far safer. Once long ago in high school I had put spacers in my suzuki and corrolla 82, One set on suzuki came off while I was driving. The car rolled in front of the Liaquat Gimnazium. I was lucky along with few friends none got serious injuries. Any how my advise is to avoid spacers, buy deep hollow wheels, extra light ones, I had paid a pretty penny and had purchased the eagle brand which is modest priced but very reliable. I went on extreme four wheeling but had no problem, including ecxtreme mudding