The shop manual, a genuine GM or authorised reprint, will have all of the info you need. A factory assembly manual, which was used at the factories for assembly instructions, comes in very handy, too. Especially with body related items. Also, you can check here for info if you can't get ahold of a shop manual
http://chevy.tocmp.com/ The factory shop manuals are dealer grade, and go much deeper than the Chilton manuals do.
And, of course, there's always all of us here
if you get really stuck.
