Keller - POLARIS ACE BALL JOINTKeller Ball Joints Are Unbeatable Your ACEs stock ball joints use a flimsy snap ring to hold them into place. Any bad bump can pop them right out of your A arm. Thats why Todd Keller built his original two piece ball joint to eliminate the snap ring. So install our Polaris ACE Keller Ball Joints. With a stronger stud and threaded housing, its almost impossible to pull these ball joints out just from hard riding. Durability You Can Depend On When youre