Is my rear end going out again..?

[Snake Eater]

Hi, I've gone through 2 rear ends so far.. I'm on my third. I know when you hear whining from behind it's usually the rear end going out. When I screwed up my last rear end my car would whine especially when pushing on the accelerator and when the car is coasting in just about every gear. Now my car only whines when I'm in either 3rd-6th gear ONLY when I let off the gas(usually at higher speeds). Could this possibly be my rear end going out once again OR my cutout playing tricks with me? Possibly another problem..?

[Fade2Black]

I have a slight whine in the back of my ta i dunno if its my rear end going out or what
i only hear it between 10-30mph its like a whoot.... whoot... whoot... as my car rolls its not constant its in intervals:think:

[SeVeReDiStOrTiOn]

could just be the gears...some are just loud

[BlackHawk T/A]

Mine is real damn loud and its constant...does it in 1st gear from 0-10mph. I can go through a parking garage and it sounds like a damn UFO is touching down nearby...