Whining/whirring noise

Any thoughts or similar experiences?
Good luck
Maybe it's not TC and it's front diff. I would take it to indy for second opinion.
If they drain fluid out of front diff that should be telling if something is wrong there.
Good luck, let us know of the progress/resolution.
When I purchased my GLK a few months ago, it had 61K miles on it. It also had a godawful whine from the front. But that whine varied with engine speed/. Using the old mechanics trick of a section or rubber hose as a stethoscope, I was able to narrow it down to the alternator. Made that a part of my deal when I bought the car, and had the dealer replace the alternator and the serpentine belt. Whine was gone.


