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      07-17-2012, 04:35 PM   #23
akotten's Avatar

Drives: 2007 335xi
Join Date: Mar 2011
Location: Wichita, KS

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Originally Posted by JamesM3M5 View Post
Part of the clutch locking mechanism in the transfer case. It uses a stepper motor on a cam that clamps the clutches tighter/looser to increase/decrease front drive. The worm gear can strip since it's made of plastic.
Is this the part of the servo motor that typically fails? (I think I know exactly what you're referring to) However....It could be that if we strengthen that gear, it could potentially find the next weakest link. Maybe that gear can help preserve the gearbox. Obviously worthless if you're destroying it on a monthly basis though.
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