The so called 1955 to 1959 Factory Assembly Manual, will pretty much have what you need. Problem is its really only for 1955 model years. So there is nothing about front end sheet metal or fleet side beds in it for 57 up. Nor can it be trusted for other things that may have been updated in the later years, that we don't know about. I think I may have found a 1/2 inch discrepancy for the location of the lower rear front fender mount point from the FAM to 59. Since I don't have a 55-57 cab can't be sure of the changes. It is specific on some decal locations like the 6 cyl valve cover.
