If there's any way you can get a factory shop manual, that's the way to go. I'd check ebay for OEM manuals or CD reprints and I know there are websites where you can download manuals for a fee. I have the Dodge factory manuals for the 72-73s and they are very complete, as is the factory Caravan CD manual. I also have factory manuals for my Kawasaki bikes and with the exception of some Japanses-English translation boo-boos, they too are very good. And then I have the Clymer, Chilton and Haynes manuals and while pretty thorough on some subjects, in other areas they are absolutely worthless. The absolute most thorough manual I have is an old Studebaker factory manual. There isn't anything it doesn't tell you, even how to disassemble the door lock cylinders.