help!

[rotorhd58]

my son and i are starting a rebuild of my grandfathers truck that was stripped down to bare frame, we just got frame back from powdercoating and just finished rebuilding the front end.

Q. which shop manual would tell me about what size bolts, what grade bolt, would i need to get i.e shop manual, or assembly manual?

Q. and as far as what part numbers i need would a parts book be best?

Q. and identifing what transmission and rear end how can i tell which one i have is there a part number somewhere

any help would be greatly appreciated, thxs in advance.