Check out any of the twenty-seven Rear Hubs/brakes components enlisted.
Parts such as the Rear Hubs/brakes: Spring,rh, Pipe, Lever,front Brake,lh, Lever,front Brake,rh are included in the Kaf400-dcf Mule610 2012 Usa / 4x4 Xc Rear Hubs/brakes parts fiche.
On this parts fiche the Bolt-flanged is the most specified component.