FWIW when you go to REinstall: I turned some long knurled nuts for mine (it was a tip I read here on a Stovebolt post). Eliminates the need for extra tools under the dash, they don't have to be particularly tight, just snug. You could have wingnuts on there if you wanted more leverage, but they will have to be extended for the wings to clear the housing. Believe the thread is #10-24. You could fabricate them other ways if you don't have access to a lathe.
I just had the gauges out again yesterday for some maintenance - so much nicer just to reach up and do it by hand.
Last edited by NorthCoast3800; 09/02/2021 7:18 PM.