GM Service Manual Online
For 1990-2009 cars only

Application

Type of Material

GM Part Number

Rear Drive Axle - with RPO G80

Lubricant

89021671 (Canadian P/N 10950849) or SAE 80W 90 GL5 only

Rear Drive Axle - without RPO G80

Lubricant

89021671 (Canadian P/N 10950849) or SAE 80W 90 GL5 only

Pinion Yoke Splines

Sealant

12346004 or equivalent