Now that the weather is nicer, putting some miles on. I noticed the car has a vibration from the back end of the car at about 2200 rpm...goes away when revs are higher, and not there below. Does not matter what gear or speed....only rpms. Tires are round, so not storage flat spots to work out. Any ideas before I hand over my checking account to Hans?
Thanks.
PS ash tray is empty.