I'd suggest your best investment would be the 1963 Chevy Truck Shop Manual. Here's a link where you can either buy the book or an electronic copy. It's an invaluable resource on how to rebuild everything from mechanical components to the alignment of body parts, along with how to remove and replace just about everything. A Chilton's manual does not compare.
http://www.classicparts.com/1963-Sho...ctinfo/04-021/
http://www.classicparts.com/1963-66-...info/04-021CD/