Here instrument module is fastened in place. We have a very powerful Neodymium magnet on front side of firewall, and it is placed on edge of tunnel layup, it holds rear magnet to show us exact position. Then we JB KWIKed bracket in place, removed module, drilled holes, put nutplates on bracket and screwed in place. Reinstalled module and drilled through bracket and firewall with 90 degree drill.
Bracket was then permanent fastened to firewall with cut down wide area washers on front.
Y10-01-24