I know I've made a thread about this in the past, but it's really puzzling to me that I can't find out much more info about this problem. My experience with Land Rovers (ie. my Discovery II) was that they're VERY consistent with their issues. This has been my case with every problem I've ever had with both vehicles, except for this.
Between 45-55 I get a REALLY annoying buzzing-like vibration through the steering wheel; NOT a "thumping" type wheel vibration. It's 110% driveline-related, but I don't know how/why/where it's coming from. I need someone who is very technically adept with these components to really nail this one for me I think, since there aren't too many ways to transmit NVH from the driveline directly through to the steering wheel.
It's worse when I JUST barely let off the throttle in cruise so the driveline is almost perfectly "slack" - then I get this harmonic humming/vibration feel AND sound. At the right frequency the sound is very noticeable as is the feel (which is the annoying part).
At this point my list is pretty much the following;
Some bushings up there? - not sure what's involved with the front driveline though.
Please helppppp, it's driving me insane!