Maintenance Schedule; Front/Rear Axle Inspection; Transfer Case Inspection - GMC 2004 Defense Owner's Manual

Maintenance Schedule

Front/Rear Axle Inspection

Inspect the front/rear axle fluid level and add as needed.
Inspect the constant velocity joints and axle seals for
leakage.
The front and rear axles are equipped with an in-line
filter on the vent tubes. Inspect the filters for blockages
and replace as needed. See "Front Axle Vent-Tube Filter"
and "Rear Axle Vent-Tube Filter" in the Index for further
information on the location of the front and rear axle
filters. Refer to "Maintenance Schedule" in the Index of
the 2004 Vehicle Owner 's Manual for additional
maintenance information on the vehicle.
6-2

Transfer Case Inspection

Inspect the transfer case fluid level and add lubricant if
necessary. On manual shift transfer case, oil the control
lever pivot point and all exposed control linkage.
The transfer case is equipped with an in-line filter on the
vent tube. Inspect the filter for blockages and replace as
needed. Inspect vent hose at the transfer case for kinks
and proper installation. See "Transfer Case Vent-Tube
Filter" in the Index for further information on the location
of the filter. Refer to "Maintenance Schedule" in the Index
of the 2004 Vehicle Owner's Manual for additional
maintenance information on the vehicle.