i have replaced the ball joints and the steering stabilizer.. my front end will seem to all of a sudden move Half a lane or more than it should from side to side.. my tires are not new but have decent tread.. my tiers and box look tight when someone is shaking the wheel.. have all 4 tires at 45 to 50 lbs pounds of air. 285/70R18 tires. even tried putting back tires on front.. no difference..