All Balls Racing – CV Axles & Axle Kits - Kawasaki, including the 94-00 Mule 2500 rear axle inner U-joint (Ref 6), the 16-23 Teryx 4 4x4 800 8 Ball rear left axle, the 16-23 Mule PRO-FX 800 8 Ball front left axle and the 12-13 Teryx 4 4x4 8 Ball rear left axle. Side-by-sides put real weight and real torque through their axles, and the stock units are usually the weak link once you add bigger tires, a plow, a loaded bed or long days in deep mud. A failing axle announces itself with a clicking joint at full lock, vibration under acceleration, or torn boots slinging grease inside the wheel well. The 8 Ball design uses a heavy-duty cage and race set with more ball contact area than a stock six-ball joint, so it handles higher angles and shock loading without binding, and the boots are built to resist tearing on stumps and rock. Fitting the correct heavy duty CV axle restores full 4WD drive with no driveline lash or clicking under load. Axle lengths and joint sizes differ by position, drive end and trim level, so tell us your year, model and corner and we will confirm the right Kawasaki UTV axle before you order.