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  1. Chevy 6.2 wiring diagram? What is the best way to wire the 5.9?

    Cummins 6BT / 5.9 Conversions
    I'm hoping to have my motor in and the fab work done by this weekend. I want to make sure I wire the new motor the best way I can utilizing the existing 6.2 harness. I'm trying to use the factory chevy gauges and connect them to the motor where needed. Does anyone have a diagram for a OBS 1991...