SUBS for F-350
I used to have a custom box behind my rear seat in my crew cab 06. the rear interior panel was removed and 2 12" where back there without an issue. the cab vents (2) that pass throught he rear cab panel to the outside where the only cleance issue after the panel was removed.
I had a standard off the shelf box with 10's behind the seat on my CC 05 Ford. I cut a piece of the liner out where a molded bump was (it was for the electric sliding rear window which I didn't have). It was easy to do, unbolted the rear seat and slapped all the goodies in. Good luck to ya.
I have an 8" loaded pro-box that I'm trying to sell that I can just about guarantee you will blow the 2-10's out of the water....



