I bought an M7030SUDT Kubota a few years back that came with 9.5-16 front and 18.4-16.1 rear tires. I need to change to 9.5-24 and 16.9-30 tires (or 11.2-24 and 18.4.30 tires). With this change I also need new wheels. I want to purchase used wheels if possible, but can find no information of what Kubota tractor wheels fit my tractor and also the desired tires. I have asked the local Kubota dealer and get nothing but a blank stare. Also wrote Kubota and again, have received no answer. Can anyone point me to a list of interchangeable Kubota wheels? Of, is there some rule of thumb like all M series tractor wheels are interchangeable or?? I found some 9.5-24 and 16.9-30 wheels and tires from an M6800 Kubota but have no way of knowing if they fit without some sort of interchangeability chart. Any information would be very much appreciated. Thanks in advance.