I really appreciate the conversation about this, it is helpful.
By shelled, he explained that he meant that the TC blades might be sluffing off material, probably due to the thrust bearings wearing out and sluffing off material themselves. I don’t quite understand why this would create a whining noise, but to be fair, he mentioned this in relation to the need to check the condition of the whole tranny even in the event that only the TC needed replacement.
Regarding the TC clutch as the source of the problem, I did engage the brakes while under load at 65mph, and the whine did not go away.
He did mention that, in general, the Impala tranny can be expected to only last 100k or so on average. Is this true?
If this doesn’t sound like the TC or the TC clutch, what do you think it sounds like the problem is?
Thanks for the help,
Mike