thank you Phy! i figured this was the case.
this is just what i wanted to know.there was a debate about this on obn a while back,and i never did get the real facts.
you'll building my next truck right now.do a good job,cus in a few years im gunna coppy ya probably lol.
unless of course by then the 2011 f450 6.7l will probably be in my price range.hard to say i guess.i just hate the new styling.

 

Let me know if you need any more dimentions. It's easy to compare while I have both trucks...

 

fsuperduty frame is 7.6mm thick. 1 1/8" tall and flange is 3". wish i knew where to get some rails to make wheelbase longer.

 

How much longer do you want to go?

 

5 feet Rollback bed needs a minimum 120" cab to axle. now its 60"

 

I'd be looking for a medium-duty to heavy-duty truck shop. As someone said earlier, lengthing frames isn't uncommon on bigger trucks.

 

Hey John, did you happen to notice if the wheel weells were narrowed?

 

not looking to make it into a pick up. I want a supercab rollback truck.