As stated in previous posts, I don't think there ever was a formal "ASSEMBLY MANUAL" per say, it's an assembly of pages of building and assembly instructions, that's all. I'm glad to have one, it's a great idea HOWEVER; you will not find one that is complete (at least not in my experience) holding all instructions. GM publishes different repair instruction in different books, not everything is in the general repair manual, there are transmission manuals, electrical and frame manuals and so forth.
When lacking factory instructions I have found it best to post my questions here or other forums, or look at a good installation on another vehicle....
