I agree that painting under the dash would be a good idea.... albeit an unnecessary step. Once you get the old wiring and gauges out you should be able to do a pretty good job of cleaning up under the dash to be able to paint. Being as it is completely hidden if you don't get a perfect finish it won't really be a big deal. It obviously is not an ideal situation with the dash in, but it could be done.

Something to consider is if you do remove to clean up/paint/wire you will still have get under to drill out welds and then back under to weld it back in and then repaint the welds. You probably won't be a whole lot further ahead by taking it out.

My dad switched cabs on his(now mine) '55 GMC with a Chevy and swapped dashes back to keep it a GMC. I wasn't involved in that process though...but it can be taken out and replaced. Only you can determine if it is worth doing or not.

Tad


1946 Chevy OS 1.5ton, 1955 GMC 3100, along with other various IH,Ford,Nash,MGB,.....