Rear Axle - GMC 2003 Sonoma Owner's Manual

Rear Axle
When to Check and Change Lubricant
Refer to the Maintenance Schedule to determine
how often to check the lubricant and when to change it.
See Part A: Scheduled Maintenance Services on
page 6-4.
How to Check Lubricant
If the level is below the bottom of the filler plug hole,
you'll need to add some lubricant. Add enough lubricant
to raise the level to the bottom of the filler plug hole.
What to Use
Refer to the Maintenance Schedule to determine what
kind of lubricant to use. See Part D: Recommended
Fluids and Lubricants on page 6-32.
To get an accurate reading, the vehicle should be on a
level surface.
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