1955-1959 Chevrolet Pickup Truck Factory Assembly Manual PDF 736 pages

The part numbers and text are searchable in this manual. (pdf find search picks up most numbers & text)
This manual looks to be complete with a Introduction, and a General Index. Which the 47-54 Factory Assembly Manual lacks.
Panel and Suburban instructions including front, middle, rear seats cushion assembly.
RPO instruction index. PDF page 579
Hydra-Matic RPO 314. PDF page 620