Good morning - I have a '85 K-10 and replaced many of the gauges and bought a new circuit board. I put in all new gauge light bulbs and they all burn as they should but when I put the black plastic piece that goes behind the clear plastic lens, I get NO light illuminating the gauges. I pulled the dash bezel back off, removed the clear lens and the black plastic piece that goes behind the lens and encircles the gauges and all of the bulbs are burning. I re-installed the black piece and clear lens and it completely blocks out all of the light to the gauges. Turning the headlight switch doesn't help. Also, my passenger window works fine with the driver's side switch, but will only go down with the passenger side switch. I replaced the switch and it still will only go down, not up but continues to go up and down from the driver's side switch. Any thoughts on my issues as I'm out of ideas.