John - You can find the installation instructions for the adapter plate in Stovebolter Pre '68 Dave's (the original adapter designer) blog HERE. The install instructions are found in the lower half of the page. Includes a diagram and should provide you everything you need. smile

~ Dan
1951 Chevy 3 window 3100
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"My Grandpa Carl's Truck and How it Became Mine"
1966 Chevelle (Wife's Hot Rod) | 2013 Chevy Silverado (Current daily driver)
US Army MSG Retired (1977-1998) | Com Fac Maint Lead Tech Retired (1998-2021)