Chevrolet 2001 Blazer Owner's Manual page 431

USAGE FLUID/LUBRICANT
Manual Synchromesh Transmission Fluid
Transmission (GM Part No. 12345349
or equivalent).
Automatic DEXRON
Transmission Transmission Fluid.
Key Lock Multi
Cylinders Superlube
No. 12346241 or equivalent).
Chassis Chassis Lubricant (GM Part
Lubrication No. 12377985 or equivalent) or
lubricant meeting requirements
of NLGI # 2, Category LB
or GC
Front and Rear SAE 80W
Axle (Standard (GM Part No. 1052271
Differential) or equivalent).
7-50
R
-
III Automatic
-
Purpose Lubricant,
R
(GM Part
-
LB.
-
90 Axle Lubricant
USAGE FLUID/LUBRICANT
Rear Axle Axle Lubricant; use only GM
(Locking Part No. 1052271. Do not add
Differential) friction modifier.
Automatic AUTO
Transfer Case (GM Part No. 12378508).
Rear Driveline Chassis Lubricant (GM Part
Center Spline and No. 12377985 or equivalent) or
Universal Joints lubricant meeting requirements
of NLGI # 2, Category LB
or GC
Constant Chassis Lubricant (GM Part
Velocity No. 12377985 or equivalent) or
Universal Joint lubricant meeting requirements
of NLGI # 2, Category LB
or GC
-
TRAK II Fluid
-
LB.
-
LB.