1999 LEXUS GS300 Suspensionfront Problems

I OWN A 1999 LEXUS GS300. I'VE HEARD SOME CREAKING NOISES COMING FROM THE FRONT SUSPENSION LEADING UP TO THE FAILING OF MY LOWER BALL JOINTS. BEFORE IT FAILED I BROUGHT IT TO FIRESTONE ON FT. LEWIS, WA TO GET A SUSPENSION INSPECTION WHERE THEY DID NOT SEE OR HEAR ANYTHING FROM MY SUSPENSION. SO A WEEK LATER (JANUARY 15TH 2007) I WAS DRIVING IN SEATTLE, WA WHEN THE LOWER BALL JOINT FAILED. THE RESULT OF THAT WAS BODY DAMAGE DUE TO THE VEHICLE CRASHING DOWN ONTO THE WHEEL AND A SNAPPED ABS SENSOR WIRE. JUST TO REPAIR THIS VEHICLE TO BE ABLE TO DRIVE WAS TO REPLACE THE BALL JOINT AND NEW TIRES THAT ALL TOGETHER AMOUNTED TO ABOUT ALMOST $600 DOLLARS FOR A PART WAS ABOUT $50-60 DOLLARS. THE COST OF REPAIRING MY VEHICLE ISN'T AN ISSUE BUT THIS IS A VERY SERIOUS MALFUNCTION OR DEFECTED ITEM THAT...

VEHICLE TAKEN TO DEALER 5 TIMES FOR VIBRATION IN FRONT END AND STEERING WHEEL, CANNOT REMEDY. DEALER STATED THEY HAVE HAD PROBLEMS WITH VIBRATION.*AK

THERE IS AN EXTENSIVE VIBRATION ON HIGH SPEEDS (50 - 75 MPH). ADDRESSED THIS ISSUE TWICE AT THE TWO DIFFERENT DEALERS. I REQUESTED WHEEL BALANCE AND ALIGNMENT DONE, BUT UNFORTUNATELY NOTHING HELPED. *AK