QuadBoss 06-13 Kawasaki KVF650 Brute Force 4x4i Lower Kawasaki Brute Force A-Arm Upgrade Kit - 414038

The O.E.M. design uses two spherical bearings to carry the thrust load of the entire front end. Over time, bearings begin to wear and the external seals become ineffective due to excess play, which allows water and debris to enter the assembly