GMC 2012 Sierra - Manual (Page 503)

Black plate (13,1) GMC Sierra Owner Manual - 2012 - CRC - 11/15/11
Service and Maintenance 11-13
Usage Fluid/Lubricant
Floor Shift Linkage
Lubriplate Lubricant Aerosol (GM Part No. 12346293, in Canada 992723)
or lubricant meeting requirements of NLGI #2 Category LB or GC-LB.
Chassis Lubrication
Chassis Lubricant (GM Part No. 12377985, in Canada 88901242) or
lubricant meeting requirements of NLGI #2, Category LB or GC-LB.
Front Axle
(1500 Series) - Four-Wheel Drive
SAE 80W-90 Axle Lubricant (GM Part No. 89021671, in
Canada 89021672).
Front Axle (1500, 2500 HD, and
3500 HD Series)
SAE 75W-90 Synthetic Axle Lubricant (GM Part No. 89021677, in
Canada 89021678).
Rear Axle
SAE 75W-90 Synthetic Axle Lubricant (GM Part No. 89021677, in
Canada 89021678).
Transfer Case (Four-Wheel Drive) DEXRON®-VI Automatic Transmission Fluid.
Front Axle Propshaft Spline or
One-Piece Propshaft Spline
(Two-Wheel Drive with 4-Speed
Auto. Trans.)
Spline Lubricant, Special Lubricant (GM Part No. 12345879, in
Canada 10953511).
Rear Driveline Center Spline
Chassis Lubricant (GM Part No. 12377985, in Canada 88901242) or
lubricant meeting requirements of NLGI #2, Category LB or GC-LB.