[quote]I have another related question. You mentioned shortening the bed rails, I assume I order the 176-inch chassis with 60" Cab-to-Axle, is that correct? [/QUOTE ]
And they still need to be shortened?
Only if you don't want the 3.8" gap between the back of the cab and the front of the bed.
A longbed pickup has 56.2" cab-to-axle (CA), or 3.8" less than a 60" CA chassis cab frame.
You can cheat a little bit when you locate the Dooley bed wheel wells over the rear axle, but not enough to make up the whole 3.8" difference. So you'll wind up with about a 3" gap even if you cheat a bit.
Centurion uses a 3.8" or so piece of plastic molding to cover that gap, so very few people will notice it. Especially with a headache rack mounted on the front of the bed. I suspect Manning does the same thing. And probably Roll-A-Long too. That's a lot less expensive than shortening the frame by 3.8". Maybe Centurion will sell you just that piece of gap filler?
But Gene is a perfectionest, as well as a world-class welder, so he chopped his frame. Check out the photos in his sig to see his handiwork.
The chassis cab frame also has too much rear overhang for a pickup bed. But even I can chop a few inches off the back of the frame, so that usually goes unmentioned as a "Well, duhhhhhh!".
Note that the Fontaine Classic Traveler pickup bed is custom made for the chassis cab frame, so it fits without a lot of hand wringing.
And Fontaine has dealers that will install their bed, so maybe they have one near Phoenix? (On edit: Fontaine stopped production of the Classic Traveler a coupla years ago. Note the date of this post in the 5-year old thread.)
And another consideration. The stock 40-gallon chassis cab fuel tank is behind the rear axle. Where the spare tire goes on a pickup. You can also order a "dual fuel tank" option that adds a small fuel tank on the side of the frame. But the Dooley pickup bed has only one fuel filler door, so if you do it yourself under a shade tree, you'll have to design and fabricate a way to get fuel from the fuel filler door into one or both fuel tanks.
If you order the bed installed from a ship-through upfitter through your Ford dealer, you (or your dealer) will need to coordinate with the upfitter as to exactly which fuel tank(s) your chassis cab must have - unless you want to pay them a lot extra for a custom installation. Same song if Gene is your upfitter. My guess is they'll require the stock fuel tank without the 2nd tank.