Front Axle - GMC 1999 Sierra 1500 Pickup Owner's Manual

Senrice d& Appearance Cam
Front Axle
When to Check and Change Lubricant:
Refer to the Maintenance Sched,ule to determine
lubricant and when to change it. See "Scheduled
the Index.
How
to Check Lubricant:
how often to check the
Maintenance Services" in
PO231
If the. level is below the bottom of the filler plug hole, you'll need to add
some lubricant. If the differential is at operating temperature (warm), add
enough lubricant to raise the level to the bottom o f the filler plug hole.
If the differential is cold, add, enough lubricant to raise the level to 1/2 inch
(12 mm) below the filler plug hole.
What to Use:
Refer to the Maintenance Schedule to determine what .kind of lubricant
to
use. See "Recommended Fluids and Lubricants'' in the Index.
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6-40
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