Reply to "Lights go up but will not go down"

I had one Pantera that did the same thing. After chasing power with a VOM, I found that on this '73, the power wire for the raise/lower motor is sourced off a side-lug on the headlight switch.... and someone had plugged onto the wrong lug. Simply moving the power wire from the normally-unused side-lug to the correct one right next to it fixed this cars headlight-raise problem. Good thing I had a working Pantera sitting next to it for comparison.