my uncle had a set on his raptor and the ball joints would separate while you rode. they have no cotter pin hole to hold the nut on and it falls off. after the fist time it fell apart, he used red loctite. He was flying throuh the sand whoops in idaho when the joint fell apart again causing the front end to dive into the sand in fifth gear tapped out. he broke his collar bone and was not real impressed. after that he drilled the bolt out so he could safety wire it. this has worked it still will vibrate free every now and then.The arms were a few years old so mabey ASR has updated the ball joints. but the arms are good and strong.