Chuck, In doing a little more resource searching, I found the below pictures extracted from this other 1947 Chevy Truck Resource that are a little clearer and also show the earlier 1947-48 AD cab mount system. Offered in the hope it may help you with fabricating yours. The resource document may have other info to also help with other aspects on your truck.
~ 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)
