Transfer Case
WARNING: This page is about a different car, the 1990 Jeep Wrangler, 1990 Jeep Wagoneer, 1990 Jeep Grand Wagoneer, 1990 Jeep Comanche, and 1990 Jeep Cherokee. However, it is still accessible from the selected car via links, so may be relevant.
Remove drain plug from transfer case. Remove fill plug for easier draining. With fluid fully drained, reinstall drain plug. Fill transfer case and install fill plug. Tighten drain plug and fill plugs to 20 ft. lbs. (27 N.m).