Has anyone experienced a driveshaft vibration that occurs at 58-68mph. The steering wheel shakes as well as the shifter.

I found one post that mentioned it, but it turned out to be a bad rotor in combination with a damaged front suspension component.

It definitely feels like a shake in the steering, I had the rear transmission mount replaced, but that only damped it a bit.

There aren't any visible signs of damage, but why would the driveshaft be out of balance? Is this a warning sign of a bad flex disk ready to come apart?

The MB dealer looked at it and replaced the mount, but it is still there. They suspect the tires / rims. I just put on some 18x8 with 235-40-18 Dunlop 9000's. They are a bit harsh but I am not convinced the vibration is due to them. The rims are 25 mm offset which are a good fit on the front physically, but different from the 16x8 ET34 that was OEM. It is possible that they are the cause.

Any insight would be greatly appreciated.

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Bryan Harter
1992 500E Smoke Silver
2002 CLK55 AMG Cab Silver/Black
2001 Harley Fatboy - Pearl White
2004 F150 FX4 Silver/Grey
1969 GTO Liberty Blue
1956 F100 Black