If you take a look at the below page from the 1960-66 FAM, it shows 4 different "Filler" setting tape thicknesses (4 different part #'s) depending on the glass thickness measurement. I found 3 different thickness tapes offered from various vendors - 1/32", 3/64" and 1/16" thick tapes, but as you mentioned none over 1-1/2" wide. You may need to check out a local glass company to see if they might have the extra wide tape in the thickness you need. Good luck and let us know what you figured out please.
~ Dan 1951 Chevy 3 window 3100 Follow this story in the DITY Gallery "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)
