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What would cause a 1993 gmc z71 4x4 not enage to for wheel drive?
Wiki User
∙ 15y ago
The front axle on these trucks have a mechanical actuator that locks the front differential in. They have used vacuum, thermal and mechanical means for this. The mechanical is the most reliable. This is a common fail point on the Chevys/GMCs. It is located on the front axle next to the differential.
Wiki User
∙ 15y ago
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