Transfer Case
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 1992 Dodge Ramcharger, 1992 Dodge Ram Wagon, 1992 Dodge Ram Van, 1992 Dodge Pickup, and 1992 Dodge Dakota. However, it is still accessible from the selected car via links, so may be relevant.
With vehicle in level position, remove filler plug and check fluid level. If level is below bottom of filler plug hole, add lubricant to bottom of filler hole.