Aaron, would you describe the orginal Allis Chalmers service manuals?
Several years ago I bought a thick binder with AC manuals. The best I remember there were 6 or so black covered repair manuals. One each on the G, B-C-CA, WC-WD-WD 45, A, and loose leaf pages on the WD45 Diesel.
I am familiar with Oliver service manuals, but these don't seem to have as much info as the Olivers do.