There is a whirring sound that is coming from the front of the engine by the serpentine belt. It increases with RPMs but not with speed. In neutral it goes back to the base level of noise like when the car is idling. I'm wanting to change out the belt but I'm thinking it's something along the serpentine that is ready to give out. From the reading I have been doing and videos I have watched I'm sure it's not the T-Case.

Better not be the T-Case lol. I'm almost 100% that it's not.

 

Could it be the belt its self.

 

I hear you. I have one left over from the 50k service kit that I picked up not too long ago. It and the air filter are the only parts left.