So i'm down to 2 extra harnesses that i don't know what they go to. One i'm sure is the Tranny, cause it's got the roundish tranny connector, it comes out of the drivers side of the plastic Vortec on the back side. And the other comes out for the back of the Vortec plastic on the passneter side, i think this might be for O2 sensors? Can someone take a picture of their O2 connectors? I looked at 1badC10's build and it shows an O2 sensor, but not the connector to the harness.