I dont know exactly how or when i did it but i broke my left rear axle ....already ordered a new one. I had a hole in my boot there and got one in...then when i went to put it back together i backed it out of the shop and the Rhino felt funny. when i pulled in my garage the boot was all twisted (didnt break or tear). So i rolled back to the shop and took it all apart again and there it was...the spline snapped off inside the outer joint. My only thought is that it had been broken for a few weeks (i dont drive it a ton) and i did it when i was pulling trees out of the woods (I was working it really hard that day). oh well....such is life i guess right?