I think (rpat356sc please correct me if I am wrong), the wood blocks he mentioned are these Part# CB206 which are offered by Jim Carter and many other of our usual vendors.

I did notice in my search that some of the vendors listed them as being out of stock, but Jim Carter says ready to ship.

Dan

~ 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)