Contrary to every other car and truck that I have worked on, the 2004 Dodge Durango has its thermostat located on the bottom radiator hose. A close inspection of the bottom hose where it connects to the engine will show you the thermostat housing.
Begin by removing the tire and wheel from your 1999 Dodge Adventure. Remove the end of the axle. Remove the wheel bearing retaining nut. Remove the wheel bearing seal and remove the wheel bearing. Reverse the process to install your new wheel bearing.