I follow the bushings reasoning, but why some and not others?
The 328i I tried (18" wheels and standard suspension) driving 80 miles over a while range of surfaces, was completely free of any spurious vibrations from the chassis or steering.
Have any of the problem cars had a different wheel set fitted, to eliminate any wheel/tyre issues? That's the first thing I'd be pushing for after a rebalance not sorting it.
HighlandPete
|