Originally Posted by david s poole

based on your description your problem is the brake reaction rod bushings.if you look under car you will see thick angled rod at approx 45 deg to direction of travel that starts at bottom of spring and terminates at body with two large round bushings supporting the lower side.these are sometimes called the Castor joints because adjustment alters the Castor.to check have car driven at 3mph while you stand by front wheel and have them stomp on brake .you will see the wheel move in the wheel well.