Fluid - Transfer Case: Service and Repair
Transfer Assembly Fluid Replacement1. Bring the transmission up to normal operating temperature (the radiator fan comes on).
2. Park the vehicle on level ground, and turn the engine off.
3. Remove the drain plug (A), and drain the transfer fluid (hypoid gear oil).
4. Reinstall the drain plug with a new sealing washer (B). Tighten the drain plug to the specified torque.
5. Remove the filler plug (A) and sealing washer (B).
6. Refill the transfer assembly with the recommended fluid (hypoid gear oil) through the filler hole (C) until the fluid flows out. Use a SAE 90 or SAE 8OW-90 viscosity hypoid gear oil, API classified GL4 or GI-5 only.
Viscosity
SAE 90: Above 0° F (-18° C)
SAE 80W-90: Below 0° F (-18° C)
Transfer Fluid (Hypoid Gear Oil) Capacity: 0.43 L (0.45 US qt.) at fluid change
7. Install the filler plug and a new sealing washer. Tighten the filler plug to the specified torque.