I couldn't find a good place for tools in my 46 either. That's why I built a trunk to go in the bed.

There is a little space behind the seat, between the seat riser and the rear wall of the cab. The only problem with that is if you have an orig. seat it's kind of a pain to get to. You have to lift straight up on the seat back and remove it to get back there. Not real handy.

I have a Glide Eng. seat which does fold forward but I used the area behind the seat for my radio. All my tools are in the trunk I built, easier to get ot and it will hold a lot of stuff.

George