I don't know its hard to diag a car over a computer screen.

Try lifting the cars front end(You got a jack).Place some jack stands under it and run it.Thy make stethoscopes for cars you can pick on up for like 15$ at a good automotive store.Place the stethoscope at the bearings,diff,and the intermediate shaft bearing(your car may not have an intermediate bearing).If it anything sounds like grinding rocks thats the problem component.

I would still say its the wheel bearings or the diff bearings.

A bad axle usually is only loud on sharp turns(unless it is about to come apart).