Well, I have to say that it's a wonderful thing you're doing! Secondly, Doug up there has a great list of mods for you to do to get your X ready. I think about what you're going to be doing, however, and all I can think about is the light-dutyness of the Explorer's front suspension. The TTB isn't going to do too well with what you may encounter, and it's always best to plan for worst case scenario than anything. Have you thought about possibly putting in full size truck axles? Like a solid axle swap? If that's too much for you, I'd like to simply add some things to Doug's list:
15) Locker of some sort. You have
no idea how invaluable a locker is. For pure reliability I would personally choose something like a lunchbox locker, an Aussie Locker for example. No electrical lines, no air hoses to mess up, it's just a pure mechanical locking differential.
16) First Aid Kit or medical supplies mounted in the cabin.
17) If you get a roof rack, I'd fabricate a locking roof-box for emergency supplies like food, water, etc. You can also store spare parts in this box, such as U joints or locking hubs. Research around Explorerforums to see what parts break often, and stock up on them. No one enjoys having to get in the mud and change a busted U joint, but you'll be thankful you had spares if you snap one in the middle of noplace and loose your 4WD.
18) A CB radio or some sort of mobile radio set up. Speak to others who have gone/are going, see if they have any mobile radio equipment. Whatever they have or use, get it. HAM, CB, whatever. Communications is life. If you're stuck in the middle of no where and it's 50 miles to the nearest town through the jungle or something, having a radio to call for help will be nice.
19) For heavier load capacity/suspension lift, I'd suggest using the F-150 leaf pack modification for the rear end of your truck and getting some 70's F150 coil springs for the front. In the front, to get it level with the rear of the truck, I'd also recommend doing the F-150 coil seat modification.
20) For even more off road performance, on a budget and easy to fix or replace, I'd do the F350 shock tower modification and put on extended travel shocks for more suspension travel. Also extend your brake lines.
21) Sway Bar Disconnects. If you see a really nasty patch of stuff, you can get out and disconnect your sway bars for more suspension travel. More travel=more wheels on the ground=more ability to keep moving.
22) Manual Transfer Case. No wires to screw up, no electrical nonesense. Just shift it into 4WD and you're going.
Hope I helped some
