Aurion driveline wobble/vibration

[Saydav]

2/2007 Aurion auto, 112000km, under light to medium throttle in 40 to 80km/hr range has a wobble/vibration. Not felt through the steering wheel, felt through the seat. When car is fully loaded more noticeable and when climbing steep gradients very noticable (and felt through the steering wheel). Bleeds out after 80km/r. At 100 km/hr and above smooth as silk. Checked by 2 steering specialist and local Toyota specialist. Engine mounts seem OK, torque converter not locking, all suspension bushes ok, driveshafts and CV not obviuosly damaged or worn. Wheels good, tyres new (occurred before new tyres). It has the typical Aurion drfit to the left. Don't want to chase the problem by replacing parts till we find it. I'd appreciate thoughts on what the cause might be.

Thanks

DS

Edited July 16, 2012 by Saydav

[Saydav]

Sorry, mistake reply. Still getting used to the forum

Edited July 16, 2012 by Saydav

[Crystal]

i to would be interested in this. My Aurion started doing this exact same thing out of no where 2 weeks ago. Its an 09 ATX with 55000k's.

Starts around 50km/hr, at it's worst at 70 km/hr, and as you say dissapears around 80k's and smooth as on 100k's. Have taken it to 2 tyre shops thinking it was the alignment only to be told perfectly fine, then took it to toyota for them to tell me there is nothing wrong with it - but the fella that came for a test drive with me said he can definately feels something...