http://www.atvflorida.com/forum/index.php/topic,30412.0.htmlthese will fit but may not turn too good. thay are VERY aggressive. ours does fine with similar but it is 4x4. maybe someone with a 2wd drive rancher will chime in and let ya know what they run.
one other thing, try for aluminum wheels. the lighter the better. if we did it over again on our rancher, we would. them steel wheels are 3x heavier than the aluminum.