Infamous reversing dash frame screw

Not taken as a smartass. In the past trying to do something as simple as changing a dash bulb can be difficult (for me anyway). There are some basically impossible, as well as anything "under dash" related. Our 67 cuda is ac equipped, radio, console. All that stuff is difficult to work around to say the least. While removal of bucket seats, console isnt difficult. It does add to whatever task your tackling.
With dash "tipped down" during this task, the access I have had behind the dash is way better from above and thru windshield then from underneath. Removing the AC heaterbox/heatercore is different then the standard heaterbox.
Hard to win with a second gen Barracuda esp with factory AC there is no room under there to get to anything. While difficult I think most repairs can be done with dash frame in place. With dash fully assembled you can't get to bolts if they go up from the bottom unless instrument cluster and glove box liner is out.

I removed dash frame from my car many years ago, pulled windshield, and put bolts back in from the top. None of the local glass shops in my area would install windshield "in that old car" so I ended up doing that myself too....