GMC 2003 C4C042 Owner's Manual page 374

USAGE FLUID/LUBRICANT
-
Exhaust Brake High
Ball Joint Cap (GM Part No. U.S. 1051344, in
Lubricant Canada 903037, or equivalent) or
NLGI #3 consistency.
Power Steering DEXRON
System Transmission Fluid.
Manual Synthetic Manual
Transmission Transmission Fluid
(Except ZF (GM Part No. U.S. 12345724,
-
6 Speed) in Canada 10953510).
Manual TranSynd
Transmission Transmission Fluid
-
(ZF 6 Speed) (GM Part No. U.S. 12378515,
in Canada 88900701).
7-28
Temperature Grease
R
-
III Automatic
t
Synthetic
USAGE FLUID/LUBRICANT
Automatic See the Allison Transmission
Transmission Operator's Manual for correct
transmission fluid.
Chassis Chassis Lubricant
Lubrication (GM Part No. U.S. 12377985, in
Canada 88901242, or equivalent)
or lubricant meeting requirements
of NLGI # 2, Category LB
or GC
Front Wheel Wheel bearing lubricant meeting
Bearing Grease requirements of NLGI # 2,
(Except Oil Category GC or GC
Filled Hubs) (GM Part No. U.S. 1051344, in
Canada 993037, or equivalent).
-
LB.
-
LB