My 04 6 speed has been experiencing a drive line lash, and most recently a vibration under acceleration. This has gotten worse recently (vibration) felt through the steering wheel and the car in general, now if you go over 60-65 it gets really out of control. I took it to the dealer and we put it on the lift and checked the motor mounts and output shafts and they look OK, my tires are almost at the end of there life cycle so just to rule them out I dropped $1200.00 on some Pilot A/S Plus tires and to my horror it still vibrates like its coming apart!
Anyone else experience something of this nature, there does not seem to be a obvious problem that I can see.

 

Same here...i don't know what is the issue. Are you lowered? I am, the dealer wanted to make it seem like it was my coilovers. I am having it checked tmr, i was told that it might be ball bearing gone bad. I will keep you posted. What did the dealer tell you?