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Home >> Cadillac >> 2003 >> Escalade EXT >> Repair and Diagnosis >> Transmission >> Transfer Case >> Transfer Case - Servicing >> Lubrication >> Draining & Refilling

Draining & Refilling

NOTE: When performing the following procedure, use only hand tools to remove and install the drain and fill plugs.
  1. Raise and support vehicle.
  2. Remove the transfer case shield, if equipped. See TRANSFER CASE SHIELD  .
  3. Remove filler plug located on rear of transfer case. See Figure .
  4. Remove drain plug from bottom of transfer case.
    NOTE: Ensure an approved drain pan is used when draining the transfer case.
  5. Allow fluid to drain.
    CAUTION: Use only drain and fill plugs that are made from aluminum. Steel or brass plugs are not compatible with the magnesium case.
  6. To refill, apply Sealant (GM P/N 12346004), or equivalent to the threads of the BW 4481 and BW 4482 transfer case drain and fill plugs.
    NOTE: Only apply drain plug and fill plug sealant to the BW 4481 and BW 4482 transfer cases. The NVG 246 transfer case does not use thread sealant.
  7. Reinstall drain plug. Tighten to specification. See TORQUE SPECIFICATIONS  .
  8. Fill transfer case through oil filler plug hole to specified capacity using recommended fluid. See RECOMMENDED FLUIDS  and FLUID CAPACITIES  .
  9. Install oil fill plug and tighten to specification. See TORQUE SPECIFICATIONS  .
  10. Install the transfer case shield, if equipped. See TRANSFER CASE SHIELD  .
  11. Lower vehicle.
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