My rear end makes a lot of whirring noises, I have read this means my Rear end is on its way out. I have changed the fluid and the noise stays. I was wondering If any one had any insight on the subject.

 

Check the front pinion bearing for play by moving the drive shaft where it going into the diff.

 

will do when I change the clutch

 

Mine has been making a whirring noise ever since i put it on the road 2 years ago (bought with blown engine) Its a 86 with s4 t2 rearend. The noise is 100% from the rear area. It hasnt gotten one bit louder in the pasr 30k i put on it. I recall checking for play on the front pinion bearing and half shafts and felt pretty solid. Im at a loss...