Pretty sure its your tcase going. I'd go with a shep rebuild myself. This thread is making me dread the day that I have to fix mine

 

Check this out negativeB. http://youtube.com/watch?v=TXbisxnAW-s

 

thanks for the info. and yes, my whine sounds the same as the "death whine" but only about 1/4 as loud.

 

Give it time. It will sound just like the clips you've heard.

 

Every whine i've heard in an evo that i've worked on so far has been a t-case, so my money's on that. If you don't know of a compitant performance shop in your area then you will have to just have someone pull out the t-case and send it to shep to check it out and let you know if its messed up. Good luck.