[AirSpeed]

You can always cut a round hole the same size as the magnet assembly in the bottom of the box, that way you can save 3/4" of hight from the box. Set the magnet in the hole and seal around the magnet with some silicone or even some weatherstriping, if you ever use the drivers in another box you can easily cut the silicone remove the magnet from the bottom. A pair of ten inch drivers under your seat would give you more than enough bass, in such a small cab you get a lot of cabin gain from your drivers. Good luck! Aaron