GMC 1995 Suburban Owner's Manual page 314

What to Use
Refer to the Maintenance Schedule to determine what kind of lubricant to
use. See "Recommended Fluids and Lubricants" in the Index.
Four- Wheel Drive
Most lubricant checks in this section also apply to four-wheel-drive
vehicles. However, they have two additional systems that need lubrication.
Transfer Case
When to Check Lubricant
Refer to the Maintenance Schedule
t o
determine how often to check the
lubricant. See "Periodic Maintenance Inspections" in the Index.
Yow 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 "Recommended Fluids and Lubricants" in the Index.
Front 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 "Scheduled Maintenance Services" in
the Index.
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