I have a big Bear 2x4 400, i just bought. I noticed when i drive slow and turn right and go in reverse it sounds like a the back right tire is knocking. I get off and turn it off and pull it back real slow and it sounds like it is hanging up right in the disc area or just before. Doesnt do it while going forward just slow turning and reverse slow. Anyone have an idea on what it could be. Any help would be appreciated. I am taking it down today to try and see the problem.

 

Maybe has some kind of locker?