Need Help Removing Instrument Cluster In '68 Barracuda

I've always just used a thin regular screwdriver and tap the nut the way I want it to go
That works fine. I also place a little masking tape around the bezel in case I slip. Also, unhook the battery. Make absolutely sure all wires are unhooked. I have had my 69 Cuda dash out several times, and I seem to remember the light switch hung up and to get the dash out I pulled it. Also, if you have bucket seats, take the driver's seat out. It only takes a few minutes and it is SOOOO much easier to crawl under the dash with it out.