Two weeks ago, I purchased a demo 2008 GX470 from Sewell Lexus in Dallas. The second day I drove it, I noticed "the clunk". Googled it and found that this is a well-known design flaw since the 2003 year models. Brought it to the attention of the Service Manager, John Bosnal, who said he wasn't sure if a TSB was issued for the 2008 models. Took the GX in for minor issues (driver's side mirror not going down all the way when shifting into reverse, XM radio installation, etc.) and spoke with a service advisor, Andre, who stated that the 2008 models already have the reengineered driveshafts and the fixes that were used on previous models make only make a small difference. Said to try using premium fuel as they only use mid-grade in their demos and see if the problem continues. Premium fuel makes no difference (I knew it wouldn't) and the problem remains. Does anyone have a 2008 year model GX with the same "clunk" experience. Otherwise, this SUV is quiet and smooth but I am amazed that Lexus with all of it's propaganda about quality, has been making the same mistake with this driveshaft since 2003. My other concern is about the honesty of the dealership and Lexus who continue to sell this vehicle without informing customers of a problem that potentially cannot be fixed. I just competed their online Lexus customer satisfaction questionnaire which reflects my concern about their quality and honesty and am hoping they decide to keep me as a customer.
