There are lots of threads on survival kits, go bags, ditch kits, etc, but I don't see much discussion on longer term kits that one might store in an suv/pickup, etc.

I have a decent sized trunk that rides in the back of my Bronco. I can fit a goodly amount of gear in there. I also keep a backpack, mostly filled with camping gear just in case I find a 3 day weekend and want to get the hell out for a few days. That plus a mini survival kit I keep on my person whenever I hit the woods. But I digress. What should I keep in the box in the truck other than redundant items, I'd also have in the backpack? As I said, I have plenty of room for outdoor gear, not so much for chainsaws and such. Oh, I also have tools and jumper cables, etc already taken care of, so I'm mainly interested in wilderness or survival gear.

Thanks.