Vibration

I'm really desperate right now and I don't know what to do.
I have vibration in the whole car when driving.(3.6 automatic) ==References====External links==* Official website* Official website* Official website You still have the feeling that it comes from the front but a precise localization is bad.

History:

I changed the cardan wave and the tail diff two months ago where she was still Elenore in hibernation.Diff had too much game almost a 1/2 resp. 1/4 revolution to force.
Tail. one from a 4.2 with new oil and new Simmeringen right and left.
After that with a red number test drive nothing anything was chic even up to 180 km/h with winter tires
After that, I have used the front brake HP 2 discs and pads and completely new saddles and also new discs and pads.
Then 2 weeks ago finally registered happy so far everything chic.
Summer tire on it.On Sunday the
Pressure memory swapped that was and still Stabi bushings in front.
Then suddenly at higher speed vibration.
When you're cornering, you're buzzing on the underbody.
==References====External links== Summers are unbalanced.
Test drive still vibrating.
Okay wheel bearings changed to the left and the two cuffs were already slightly porous new out of the bearing right from the drive shaft.
Wheel bearing on the right and crossbar incl. Renewed the front axle's rubber.
Test drive vibration.
Okay, thought maybe. the used Karadan wave one away.
Karadan shaft exchanged
Test drive still vibrating.
Then on stage you can run up to 160 km/h the gearbox, motor vibrates and thus also the stage.
Then when leaving, gearboxes switched from 4 in 3 gears the grated moved very not uncomplicatedly with the naked eye to recognize.So quite doll.
Well looked ahead and diagnosed a broken gear bearing on the left.
Well, I thought that was the solution to the problem.
I made myself to switch to the camp today.The camp was also really broken totally energized.The new pure and test drive.
The same in green everything at the old.
After that, motor pendulum use under the magnifying glass butissen and on the timing belt cover flush and approx. 0.5 cm air to the other actual binding of the rubber bearing.
Well new I had also changed in stock.Motor ran quieter in the stand.
So test drive from feeling vibration a bit better but still.

Now what?
Then I looked at the engine bearings on the right and on the left more closely to the right so far okay. The driver's side left between the Krummer and the body approx. 3-4 mm space.
But no definite scratch marks of leaning, only slightly but does not know if this comes from engine replacement from 2 years ago.

The next thing that would be left would be a gear change or a change of gear. I can't rhyme with the vibration of the grated.Above all because there are no sounds to be heard.I have also experienced a lot with the Audi V8 but I am absolutely at the end with my Latin and don't know what I am doing or what I am doing. where I'm supposed to look.
Please help me.