Need help with driveline noise

[mussberger]

"Quote:
Originally Posted by Brian Carlton
The determination of "differential" or "wheel bearing" can be assisted if the following question can be answered:

Does the noise almost go away entirely when the drive shaft is unloaded?

The drive shaft is unloaded when you are cruising along at a steady speed and you lift your right foot ever so slightly so that the vehicle just begins to slow down. If you lift too far, the shaft will load up in the opposite direction and the noise may return.

Please attempt to reduce or eliminate the noise via your right foot, in the manner described, and report back."

I saw this post in the diesel forum and I think it might pertain to my car. I have an 1982 380SL with an honest 52k miles on it. It makes a whirring noise that starts around 60-65 mph a gets a bit louder as the speed increases. If I lift on the gas pedal the noise will go away until the car slows down and itcomes back when I think the drive shaft is getting loaded? I have checked the wheel bearings and the diff level is correct. Any Ideas?

Thanks Steve Dabney