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Autotrac Vs. 4wd

jnpaddison

By jnpaddison
in Ask A GM Technician

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jnpaddison

Posted
Posted

Autotrac being a semi-automatic on/off when required where 4WD is full time ,, that I get (Delta between tire rotation implying loss of traction - the fronts apply drive )But I don’t understand when it comes to a 6" Procomp lift - a new drive shaft is required due to vibration ...With the Manual Shift - drive shaft not required ..Are the drive shafts the same for a manual transfer / Autotrac case ??

Or can this be bypassed from switching from 2WD bypassing AUTO and going directly to 4WD

 

???

 

GMT900 related

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