EZ Mix 598 Mixer Wagon. Also have lots of new and used parts. We changed the axle to a truck axle years ago and have had no problems with flat tires. We changed the weigh bars to round ones off a EZ mix 745 and put four on instead of three and have had no problems since then. We have extra flighting for augers and just put new flighting towards the front on all four augers. We have extra center metal to fix in between bottom augers. We also have another EZ-mix 598 for parts too.