But Blade, he is right. Chilton's from what I've seen is best used to absorb. I think there's a reason almost no one around me carries them. Hayne's is so-so. I have used it to get info like the firing order, fluid capacities, and come general info.
Not sure what they cost, mine was under the seat when I got the truck. But, I think you'd be better off with google. Body specific info is plentiful here. And searching just for Ford 300 online I've found tech info and youtube videos for anything I've needed.
Robert Bentley Publishers makes some great manuals, but for American vehicles they mostly make general info books and EFI tech books.
Here's an example of what I was trying to say Rick.
I used my Hayne's to look for the thermostat orientation. It had a little picture, including thumbs and other parts. With mine in front of me I was able to figure out which way it went. But, it didn't mention the little bypass valve at all. If I was somebody who'd never done this before I'd probably still be outside raging.
If you want one in truck for emergencies I'd go with Hayne's. But otherwise I'd spring for the factory sets, or just lean on the FTE community.