Four-Wheel Drive; Transfer Case - Chevrolet Avalanche 2004 Owner's Manual

Four-Wheel Drive

Transfer Case

It is not necessary to regularly check transfer case fluid
unless you suspect there is a leak or you hear an
unusual noise. A fluid loss could indicate a problem.
Have it inspected and repaired.
Refer to the Maintenance Schedule to determine how
often to change the lubricant. See Scheduled
Maintenance on page 6-4.
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How to Check Lubricant
1. Remove the filler plug.
2. Add new fluid until the level is below the bottom of
the filler plug hole. To get an accurate reading, the
vehicle should be on a level surface.
Refer to the Maintenance Schedule to determine
what kind of lubricant to use. See Recommended
Fluids and Lubricants on page 6-13.
3. Reinstall the filler plug. Use care not to overtighten
the filler plug.