Ok guys I have a 2012 6 speed manual transmission. I'm getting a sound like a jet engine coming from under the dash area. It get gets higher pitched as I speed up and it's louder when the clutch is engaged. From what I've read it's either the transmission, or the transfer case??? From my knowledge it is very past due for a trans. fluid change. Does anyone know any other possible causes? I'm a poor college student and can't afford to play repair whac a mole.