GM front 4X4 front prop shaft turning while in 2WD

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dmatchett
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Joined: Tue Mar 01, 2016 5:45 pm
First Name: Douglas
Last Name: Matchett
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GM front 4X4 front prop shaft turning while in 2WD

Post by dmatchett » Thu Mar 03, 2016 2:56 pm

A very common inquiry I see is on GM models with a NP136/NP236/NP246 transfer cases and
the front 4X4 prop shaft turning while in 2WD, this is normal because the clutch pack is preloaded,
although the prop shaft is turning the front differential is disconnected from the axle on the
passenger side, the axle will connect only in 4WD.

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