GM Service Manual Online
For 1990-2009 cars only

Application

Type of Material

GM Part Number

Canadian Part Number

Locking Differential Guides

Chassis Lubricant

12377985 or equivalent

88901242 or equivalent

Rear Locking Differential Clutch (friction disc) Disc

SAE 75W-90 Synthetic Axle Lubricant

 89021677 or equivalent meeting GM Specification 9986115

89021678 or equivalent

Rear Axle

Axle Lubricant

12378261 or equivalent meeting GM Specification 9986115

10953455 or equivalent

Ring Gear

Marking Compound

1052351 or equivalent

10953497 or equivalent

Pinion Gear Bearing Retainer

Sealant

1052942 or equivalent

10953466 or equivalent

Pinion Yoke Splines

Sealant

12346004 or equivalent

10953480 or equivalent