94m5 said:Alot of it is more than the balancing.
When you step up the gears, your spinning the driveshaft faster. The faster you spin it, the more centrifugal force your putting on it. After so much, the center of the shaft starts to "walk" off of it's center line, which causes the vibration we all feel.
The ONLY thing that I have gotten to stop it was a call to Dennys driveshafts, and a 2 week wait. Both of my cars have them, and I would'nt trade them for the world.
Mike
Gotcha.