Knocking noise when making left turns

Hey, Have a 98 GA, had tires balanced and rotated, now when I make left hand turns, somtimes right, mainly left and louder, I have a "knocking" noise?! Wasn't there before the B/R.
What is it?? Dangerous? Thx

Hey army. it could be several things. Worn ball joints, upper shock mount loose, tie rods. Have you check the Lug nuts? It sounds stupid, but mechanics are people too and they forget some things now and again. Could also be CV-joints are bad or outa grease. XI