I have now had a fifth (5) problem with the drive shaft. It is very irritating. It started on my 03 GX470 at 18,000 miles and only stop"s for about 3,000 miles after repaired or replaced. My Lexus will let me trade but I want a refund less usage. They have denied this request. This vehicle has also had a new transmission at 7,000 miles and 2 CD changers. The left front turn signal goes has gone out for the fifth time. Has anyone received a refund or just lip service?