Engine:

Stock 2.9L

K&N air filter

AGR high pressure power steering pump

Transmission:

Stock 5-speed

Transfer Case:

Atlas II 4.3:1 (the best upgrade so far!)

Rear Axle:

Dana 35 with 4.56 gears and Detroit locker

Front Axle:

Dana 30 with 4.56 gears and Lock-Rite locker

Warn hub conversion

Heavy Duty front & rear driveshafts - Yarman Driveshafts

33x12.50 Super Swamper TSL

Rear Suspension:

6" lift, blocks and extra leafs

Front Suspension:

6" lift, custom leaf spring conversion

Body:

Home-made steel rocker panel guards (repeatedly tested for durability in Moab)

Custom full-size roof rack

Front and rear winch mounts (no winch yet)

This rig has been very reliable through many miles of off-road exploration and organized trail runs in California, Utah, Colorado, Wyoming, Oregon, and Washington.  The next serious upgrade will probably be a 302 engine swap (the 2.9L has a little trouble pushing the 33's on the highway).