Definitely give us an update on the resolution. I'm curious as to whether it is indeed a transmission issue or if replacing the front differential resolves your issue.My 2003 MDX is at the dealer as we speak for a whine that cropped up after fluids were changed @ 105K miles. I have done the Motor mounts,timing belt, water pump, brakes and really want to keep it. The dealer says the 2003 did not have the same trans issues so I let them replace the front differential (they said it was the cause of the whine) Today they are still having the same problem and they think we may have a bad replacement part from Acura. I hope this is not leading to the Trans as I quizzed them about it from the start. To be continued.