Front Axle - GMC 2005 Sierra 1500 Pickup Owner's Manual

When to Change Lubricant
Refer to the Maintenance Schedule to determine how
often to change the lubricant. See Scheduled
Maintenance on page 6-4.
What to Use
Refer to the Maintenance Schedule to determine what
kind of lubricant to use. See Recommended Fluids
and Lubricants on page 6-14.

Front Axle

When to Check Lubricant
It is not necessary to regularly check front axle 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.
5-60
How to Check Lubricant
To get an accurate reading, the vehicle should be on a
level surface.
If the level is below the bottom of the filler plug hole,
located on the front axle, you may need to add some
lubricant:
•
When the differential is cold, add enough lubricant to
raise the level to 0 to 3/8 inch (9.5 mm) below the
filler plug hole.