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  |