2012 MODEL # 5900572 Description: IS1500ZXB2861 61" 28 hp B&S engine Direct Link https://www.ferrismowers.com/na/en_...s.productmanuals.html?searchrequested=5900572 Hey thanks for reading y'all, Haven't been here in a while. I'd like to sell my 2012 Ferris Zero turn. It's got 250 hours on it. My concern is that ever since i've had the mower, when on flat ground or road etc, the right rear wobbles as if the axle or wheel is bent. I mean, it goes full speed but you can feel it bounce up and down but only on pavement not grass. On grass it works great, surprisingly no grass rip ups or tear. I'd like to rule out the axle being bent and hopefully replace the wheel. Has any of y'all ever came across a zero turn with a wheel thats wobbly? It's been like this since I bought it in 2013. Thanks btw the part i found i would need IF it was the axle is ferris part #5102681 which retails for $680. Lets hope its the wheel!