Transfer Case Description and Operation: General
The transfer case oil drain plug (1) is located at the bottom of the assembly to the right side of the rear output shaft.
The transfer case (1) is positioned in the right side of the vehicle and bolted to the transmission. Its primary function is to receive power from the transmission and transfer it using helical and hypoid gear sets to the rear differential via the propeller shaft. The internal intermediate shaft transfers power to the right-side front wheel.
The transfer case (1) is fully mechanical with no internal or external electronic controls or sensors.
During assembly the transfer case (1) is filled with oil, which then does not require service interval replacement. The correct type of oil must be used when filling. The incorrect type of oil could lead to transfer case damage. Refer to Adhesives, Fluids, Lubricants, and Sealers .