Here is a thread with the link to some diagrams:
http://67-72chevytrucks.com/vboard/s...d.php?t=437373
I bought a tool from the Mac tools truck to repin harnesses with, but you can use a paper clip to release the wires in the connector. Make sure you raise the tab back up so they will stay where you want them to. Repin your harness to fit the cluster. If you got teh connector with your donor, it's pretty easy. The General didn't change the colors too much from '73-87.