For the tires, I have a couple of buddies that are very happy with their BFG MT's, so I am thinking about going in that direction... In fact, since I got plenty of thread left over in the 31" HT's, I am thinking about waiting until september and seeing if the MT's KM2 come out in 33 12.50 R15...
On the locker side, I am thinking about OX in the rear and an automatic on the front (to keep cost down). But the rig will be driven on the street, so that is why I am not doing a spool... Besides, from what I have read, a spool is harder on the axle than a limited slip, and the D30 is still stock, so I am thinking about something not as hard on the axles as a spool. (Is this even true, by the way? I read it online, but what's your experience, Bounty?)
Here in Miami, the Jeep will not see any mud (it's just a daily driver), but in Panama, it will be driven on-road to the trails (a couple of hours worth each way) and in the trails, so it is important that it be reliable... A lot of people do run Super Swampers and IROKs there, but since it rains A LOT in Panama, I am thinking the extra grip off road may not be worth it if the rig becomes dangerous to drive in the rain...
Felipe