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I recently had my drive shaft apart for a rebuild at which time I replaced the center support bearing. I had the old one removed and the new installed by the driveline specialist who also replaced the u-joints and balanced the whole thing. Everything works fine except that I get a whine (in all gears) that seems to be coming from the center bearing. Is there anything that can be done besides replacing the bearing again? Is there any type of alignment that can be done? I have had the car up on jacks and crawled under with the drive shaft spinning at it sure seems to be coming from the bearing. Also seems to get worse after it heats up. Any words of wisdom?
 

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I wonder if it's a bad bearing? They fit only one way, with the spring and cups, and wedge fit on the shaft. I wonder if it wasn't installed quite right? But if everything lines up, the nut was fully tightened, and it spins freely, not sure what to say other than a bad bearing.

It's generally a bear to get these apart without bending the front of the shaft, due to the tight taper fit and years of corrosion, etc.

In my experience they're kinda jingly as they go bad. But whining makes sense too. There was a rash of 1750/2000 bearing carriers recently (I got two) from the usual mail-order suppliers that were like .020" too small in diameter, so the bearing wouldn't fit without major interference. Dunno if that might figure into it.

Andrew
 
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