They do have a link to archives on the new website.
https://www.gmfactoryone.com/product...-research.html
I tried their search function for "1969-Chevrolet-Truck Info kit" which is what they previously called the document for 1969 trucks and got NO hits.
Luckily, I have copies of the 1967-1972 truck info kits on my computer if they actually do not plan to make that info available to the public.
Hopefully the website is still a work in process and this info will be available to enthusiasts in the near future.
Maybe forum member Keith Seymore can find out what their plans are.