66 GMC Long to Short LS Swap

[Duncan K]

My wiring harness for the LS is just a birds nest of extra wire. I have the ECU mounted under the dash being the glove box. I put the cab back on the chassis and made a bracket that comes off the back of the motor and in through the firewall to the ECU. This gives me the exact location where the harness plugs in. With that done I pulled the cab off. I pulled each wire out of the plug, back through the birds nest to its source, rerouted it the way I wanted back to the plug, cut it to length and crimped a new pin on it. Just have to get some braided loom to dress it up and protect it now.

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I think I am going to run all the power wires to a relay/fuse box under the hood