GM Service Manual Online
For 1990-2009 cars only

Application

Type of Material

GM Part Number

Rear Drive Axle

Lubricant

SAE 75W90 Synthetic Axle Lubricant GM P/N 89021677 (Canadian P/N 89021678) or equivalent meeting GM Specifications 9986115

Pinion Yoke Splines

Sealant

12346004 (Canadian P/N 10953480) or equivalent