I've got a whining noise that seems to be coming from the transmission/transfer case area. The noise is more speed specific than rpm specific. The odd thing is that once the transmission shifts into overdrive, the noise goes away. Has anyone had this one before? I'm not sure where to go with this one. The transmission still shifts fine. Really looking for help on this one. 2004 FX4 Screw.

 

Mine made a whirling noise the week before it went,the bearing was going on first gear

 

I'm hoping it is not something terminal. Any other ideas? Anybody have recent rebuild and what did it cost?

 

1600 bucks, had mine done november 1