Trüpower Motorsports Polaris SPORTSMAN, SCRAMBLER 12 MM X 1.5  Premium Direct Replacement Tapered Ball Joints are manufactured to meet or exceed OE specifications following rigorous quality control and product stress testing. Trüpower ball joints stabilize the suspension system so your ATV continues to perform the way it was meant to perform. Plain and simple, our Polaris SPORTSMAN, SCRAMBLER 12 MM X 1.5 ball joints are built to last so you can work hard and play even harder.