My entire front end is Moog (upper and lower ball joints, idler arm, pitman arm, tie rods, bushings, etc), still rides nice and tight 2 years after the fact. I've heard horror stories with the cheaper ball joints, including one where a guy literally took his fully restored truck out for its first spin, and he busted a brand new cheapie balljoint and crushed the fender on the passenger side when it dropped onto the tire/rim.