LM-UTV produces the best aftermarket UTV ball joints on the market. We didn't just make the ball joint bigger, we completely redesigned and made it better then the rest. Bullet proof "bolt in" design does not rely on a retainging ring to keep the balljoint in the arm. All our ball joints come completely assembled, proberly gapped for grease, these will be the easiest balljoints to install and the last set you will purchase. Aluminum cap will keep water and debris out of the balljoint (making this a completely sealed balljoint) and also will not leak grease like others, and causing a mess on the wheels. Made in house, and backed with a lifetime warranty.