Four-wheel drive, Transfer case – GMC 2003 Sierra User Manual
Page 433
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Four-Wheel Drive
Lubricani checks in this sechon aiso lapply to these
vehicles. HQwev
0
г^ there are two addilionaJ systems teat
need lubdcatran.
Transfer Case
When to Check Lubricant
Refer to the Maintenance Schedule to determine haw
often lo check the lubricant. See
Part
C:
P&nodic
M aintenance Inspections on page 6-16.
How to Check Lubricant
To gel an accurate reading, the vehicle should be on a
level surface.
If the IsvBt Is below the bottom of Ihe filler plug hole,
you'll need to add some lubicanl. Add enough lubricant
to raise the level to Ihe bottom ql tee filler pi up hole.
Use care not lo overtighten the plug.
What to Use
Refer to the Maintenance Schedule to deiermine what
hind of lobricanl to use. See
РщП D: Яecon}n^endвd
Fluids
and iubncants on page 6-16.
Manual Transfer Case
5-58