Thanks for your help again. This is kind of urgent so I looked around and found a used one here in Chicago for $700 (NV 125). I am hoping to get it replaced tomorrow.. (And if taking the transfer case out requires lifting the car, its not possible for me to do anyway. Otherwise I would love to DIY)

And yes, there is a slapping sound (I have been hearing that for a while and wondering if it was related to tranny issues, actually) during quick acceleration, very loud and annoying..

Thanks again,

Ozzie..

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X5 4.4 01