Okay, i forgot that about the 4x4s. Basically i just need to know what wire behind the glovebox is used to run the speedometer. I'm keeping the 4L80E in my C3500 6.5, but since i've swapped to mechanical injection and a aftermarket controller is running the speedo, i dont know what wire to use for my speedometer output..
i forgot 4x4's use transfer case speedometer inputs.
i forgot 4x4's use transfer case speedometer inputs.