Hi guy,
my 2005 4.4 makes a high pitched "torquing up" sound when I shift, while in a stopped position, from P to R or D.
Since I am not moving yet, could this rule out the chain (chain stretch) as a problem and be related only to the transfer case/drive shaft splines?
see my video for sounds.
https://www.youtube.com/watch?v=Uy1ml3U3Vc4

thanks guys

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I swear, my cars are like a girlfriend.
Sometimes its a rough ride, sometimes its smooth motorin'.
Sometimes she doesnt like how i treat her and sometimes i dont like how she behaves.
BUT at the end of the day, she loves it when I am inside her.

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'91 850i
'05 X5 4.4i
'09 Clubman S