I know the ball joints in the 90-93 tegs are pressed in to the knuckle, so you will have to take the knuckle assly to like pep boys or something and have them press it in for you. I don't remember how how got the tapered shaft to stop spinned when I changed out my axles, maybe support the lca, then tap on the top of the knuckle to get it to seat in the lca. good luck, suspension is just lame sometimes.