Transfer Case
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 1988 Dodge Ramcharger, 1988 Dodge Ram Wagon, 1988 Dodge Ram Van, 1988 Dodge Pickup, and 1988 Dodge Dakota. However, it is still accessible from the selected car via links, so may be relevant.
Light duty service requires transfer case servicing (fluid drained and refilled) every 37,500 miles. Under normal heavy duty conditions, service transmission every 36,000 miles.