Sound Vibrations Noise at high speed Toyota Camry 2001

Hi everybody;

I've a Toyota Camry 2001 with terrible vibrations at high speed.

If I drive above 80 km/h, you can feel these vibrations, at 110 - 130 km/h they're really loud! You can feel the vibrations with your feet on the ground, or at the door.

- And if I make a high speed turn to the left, the noise and vibrations disappear! the sound is like; hang.. hang.. hang,

- If the car is heavy loaded, the sound is also less!

- I don't feel any vibrations or what so ever in my steeringwheel, and the car drives terrific, only when you release the steeringwheel, it slightly goes to the right a little bit....

- I changed al the tires, balanced them 2 times extra

- Changed the bearings in the front


I already drove 20.000 miles with this, no engineer knows what it is.

Does anyone knows?

Thanks!

Elias