Problems with 2001 Lexus RX 300 SUSPENSION

I took the vehicle to the lexus dealer when purchase. i told the repair person that there was a noise/roaring coming from the front of the vehicle and i was told that it was the suspension not to worry about it. for this inspection i paid over $300.00. now the noise is back and it is much louder and it is constant.from 45mph and higher.the noise occurs when i am driving straight and when i turn to the right.when turning to the left the noise stops. i sound like the noise is coming from the steering column mechanism. the vehicle has been well maintained.please note that this my complaint. *tr

2001 lexus rx300 in town driving all of a sudden the wheels seemed to be locked up, any speed above a crawl was accompanied by strong vibrations and loud noise. barely made it home with emergency flasher on and crawling along. after parking the front right wheel looked cockeyed and an upper rod to the right front wheel had detached. will get aaa to take it to a lexus dealer tomorrow. the car has less than 60k miles. just glad i wasn't on a freeway or far from home, but was surprised and shaken by this. *tr