you said that the roaring noise that is heard when driving that is a positive speed coeficient is not heard when the car is in the air. the reason is because there is no weight on the bearings... that is... if it is the bearing making noise. Im not so sure about the fluid pump.... i was just thinking... maybe a CV goin out??? i highly doubt it though...
Much props to boost for beating me to what i was thinkin of sayin.. touche.
I would suspect only TC and pump is moving at idle, but don't get noise in park
As I start to roll forward just off idle is the only time the rotational noise is heard
With vehicle in air, noise is still heard in trans /oilpan area
Kind of a crunchy squeek for a while stopped and only a few revolutions
very noticeable inside and outside the car