Everyone, thanks for the excellent information. I popped off my inspection cover and made sure to adjust the clutch disc to have .050" of clearance. I also heated and bended the threaded adjuster rod to make a more positive angle. It feels great. But because of the bend, I can't adjust any more clearance or rod hits the exhaust but it seems perfect.

The noise is still there, but I came to discover that the whine disappears if I remove the power steering belt. And I've already had the pump rebuilt twice. Lousy.

The best news that I found that the input shaft is weeping. After having the gearbox rebuilt. Twice in one year. I can't ever seem to win.

Anyway, it looks like the culprit is hydraulic, not gear related.

Thanks again!