GMC 2000 Sierra User Manual
Page 404

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USAGE
FLUID/LUBRICANT
Manual
Transmission
(5
-
Speed without
Low Gear,
RPO MG5)
Synchromesh Transmission Fluid
(GM Part No. 12345349
or equivalent).
Automatic
Transmission
DEXRON
R
-
III Automatic
Transmission Fluid.
Key Lock
Cylinders
Multi
-
Purpose Lubricant,
Superlube
R
(GM Part
No. 12346241 or equivalent).
Floor
Shift Linkage
Lubriplate
R
Lubricant Aerosol
(GM Part No. 12346293 or
equivalent) or lubricant meeting
requirements of NLGI # 2
Category LB or GC
-
LB.
Chassis
Lubrication
Chassis Lubricant (GM Part
No. 12377985 or equivalent) or
lubricant meeting requirements
of NLGI # 2, Category LB
or GC
-
LB.
USAGE
FLUID/LUBRICANT
Front Axle
SAE 80W
-
90 Axle Lubricant (GM
Part No. 1052271 or equivalent).
Rear Axle
SAE 75W
-
90 Synthetic Axle
Lubricant (GM Part No. 12378261)
or equivalent meeting GM
Specification 9986115.
Manual
Transfer Case
DEXRON
R
-
III Automatic
Transmission Fluid.
Automatic
Transfer Case
Automatic Transfer Case Fluid
(GM Part No. 12378396).
Front Axle
Propshaft Spline
or One
-
Piece
Propshaft Spline
(Two
-
Wheel
Drive with
Auto. Trans.)
Spline Lubricant, Special
Lubricant (GM Part
No. 12345879) or lubricant
meeting requirements of
GM 9985830.
Rear Driveline
Center Spline
Chassis Lubricant (GM Part
No. 12377985 or equivalent) or
lubricant meeting requirements
of NLGI # 2, Category LB
or GC
-
LB.