content: I own dozens of Haynes and Chilton manuals and they actually show you how to service something. This book goes over NOTHING. It gives very basic info that doesn't help you at all. I was working on a 10yr old Duetz and it had a few pages on 70's models but no spec sheet or repair info on anything. I ended up having to pay someone to service it because I couldn't track down specs and apparently neither could the author of this book. WASTE OF MONEY