Quote:
Originally Posted by Sugar Bear
Try shimming the center support bearing away from the tunnel and see if it changes anything. I had a W124 start a vibration at 38 MPH felt in the drivers seat going away on the highway. A shim between the nose of the diff and the floorboard changed the pinion angle and the vibration completely stopped. W123 diff is set-up/suspended differently.
Good luck!!!
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Interesting. So, since my center bearing looks fine (it could be binding but nothing says it is), I suspect IF it is driveline related, it would be the u-joint.
Does your driveshaft have a u-joint? I’d suspect that in your case, maybe the slight change in angle caused the bearings to sit and roll slightly different. It seems like my best option is to pull the driveshaft (I’m assuming shimming would just be some washers on the bolts?), versus dropping the thing. But isn’t it prudent to check all the components for binding?