csquared

As a owner of an 05 GX and a Lexus master tech, here is the unoffical word that I have gotten from the tech department---a revised rear driveshaft is still under development---I have worked on GX's 03-05 experiencing the clunk, and yes mine does it too---the problem lies with the slip yoke on the end of the driveshaft (end of the shaft slides in/out on splines)---the clunk comes from the splines that are machined onto the main part of the shaft and the yoke sticks as is slides---has to be at the right height to make it happen---first there was a service bulletin with an updated shaft---still makes noise with new shaft--then there is an un-offical field fix that involved cleaning/smoothing out the splines--50/50 chance if it worked---as of right now, when a GX comes in with a clunk complaint---we submit VIN and customer info to Lexus tech center and they are building a case for correction---still have yet to see new "updated" shaft (2nd time), but i will keep everyone posted--I have access to all Lexus service bulletins if needed (Lexus service bulletins are public type documents---there was some lawsuit that made it illegal to keep service bulletins from the public eye--if you go to a Lexus dealer and ask for a copy of a bulletin, they should give it to you

hope this helps answer some questions

Jason :P

bullseye

exactly what palm beach lexus has been telling me since we drove the car off the lot in august 05 (2 trips back, one polishing and lube attempt, one new drive shaft, still thumping)

I think I'd be ok with this whole process if I knew I was "on a list for mfr repair" when the fix surfaced.

as long as the thump doesn't cause other problems like the xmission, and I can get a commitment from Lexus, I can stay calm about the investment.

any insight mryellow?

was the last post on this topic really may 31, 2005?

would think there would've been a post or two since then.

we've got a 2005 gx470

took delivery in august.

thump showed up within the first 2 weeks.

"polishing" process didn't fix anything

new drive shaft didn't fix anything

the service writer at palm bch lexus said lexus was working on a permanent fix but it had been 2 years to his understanding that lexus had been "working on it".

argh.