1991 Chevy Truck Transfer Case - Trans-Action
Our Red Sled project is a wiring nightmare. It's old enough that no dealership still has a full harness for it, yet new enough that no one is restoring them so the aftermarket hasn't started making the harnesses. We got this used but priceless (to us) factory wiring diagram book on eBay and have found it helpful when hooking up the Compushift controller to the factory truck PCM and harness. Another option is Helm Inc., which sells many different service manuals.
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