Roaring Noise Underneath

[Clay]

89 RRC

Shortly after installing a 2" OME lift I have noticed a roaring noise underneath the vehicle.
Particularly between 75 mph and 50 mph. It occurs during decelleration and momentarily upon accelleration within the above mph range. Any ideas as to what my problem may be?

 

[Nomar]

driveshaft u-joints...

 

[RangeRoverHP]

Or shafts out of phase. Or pinion bearings running with a different load.
Run it up on a lift and figure out where it's coming from.
Could be a few different things.

 

[alia176]

All of the above plus the fact that you're higher and more air is movng around? Also, make sure it's not the "whining" sound coming from the Tcase. Bad wheel bearings tend to make "roaring" sound as well.