Just wanted to pass on that I have a set of 27" Claws on my Rubicon and find them great. Really did not know just how limited my stock tires were in the mud until now. I went with 27" x 10" x 12" all the way around. I probably could have put 12's on the back but I am not a hard core mudder. I did not want too much power loss. I have not noticed any. If I use low and ESP as I always did anyway in the deeper stuff, all seems the same. Here are a few pics to show the fit. I would recommend them.