I'm not sure anyone can answer this question without further info such as how much is your YJ lifted and how much backspacing do the wheels have etc. Not to mention, YJ and TJ owners, in general, are 15" wheel people. So there's not a lot of people on this forum familiar with 17" wheels when it comes to YJ's. Also, 34" tires are pretty rare. Usually people are dealing with 33" or 35" tires.