Keller - Kawasaki Mule PRO Ball JointA Better Kind of Ball Joint Keller built a better Mule Pro ball joint to stop them from breaking the crummy stock snap ring. His two piece design is incredibly robust. So get our Kawasaki Mule Pro Keller Ball Joints if you want a better ride. Theyre incredibly strong and virtually impossible to pull outperfect for hard work and hard rides. Kellers Two Piece Design Is Bigger and Better Two piece ball joints go in your A arms a little differently than