My Driftwood 1998 Dodge Durango SLT+ custom ordered from the factory. 5.2L 44RE NP231HD 3.92:1 with Trac-Lock 9.25" rear end.
I just passed 150,075 miles on my factory drive train with no problems (1/5/2008).

Work Done:
-Ported Throttle Body
-Custom 4/8 gauge Engine Ground Kit
-Hella Optilux Fog Lights with 6000k 50watt HIDs
-Focal Polyglass speakers front
-Infinity Reference speakers rear
-Lotek Gauge Pod with Autometer Ultra-lite II gauges
-Mag-Hytec Deep Transmission Pan
-Amsoil ATF in the Transmission/Transfer Case
-Amsoil 75w90 Gear Oil in the Front/Rear Differentials
-Bilstein Shocks
-180* Napa Power-stat Thermostat
-Napa Brass Cap and Rotor
-MSD Ignition Wires
-NGK V-Power Spark Plugs
-MOOG Inner and Outer Tie Rods (preventative maintenance)
-MOOG Upper and Lower Ball Joints (preventative maintenance)
-Castrol GTX with Napa Gold filters

Future Mods:
-Flex-a-lite Black Magic Electric Fan
-Headers
-1.6/1.7:1 Roller Rockers
-Mopar Performance Valve Covers
-Mag-Hytec Front and Rear Differential Covers
-Whelen Hideaway Strobes
-Tekonsha P3 Brake Controller
-Aftermarket Muffler (or duals)
-Wilwood Big Brake Kit (front and rear)
-Torsion Bar/Shackle lift and 33" BFGoodrich Mud-Terrains
-Prerunner Bar (custom made, aluminum)
-Lots of sound deadening material
-Addco Sway Bars

Wouldn't mind:
-Edelbrock Aluminum Heads
-Modified Intake Manifold
-Aftermarket Camshaft
-Mopar Performance PCM
-Kenne Bell Supercharger or a custom Turbo Setup
-Electric Cut Outs
-5.9L Cummins 24v Turbo Diesel :)