| 2.1. | Remove the propeller shaft from the vehicle. Refer to Two-Piece Propeller Shaft Replacement . | 
| 2.2. | Wire brush the affected area. | 
| 2.3. | Wipe clean the affected area. | 
| 2.4. | Install the propeller shaft. Refer to Two-Piece Propeller Shaft Replacement . | 
| 2.5. | Apply chassis lubricant (GM P/N 12377985 or equivalent) at the slip spline grease fitting until the grease begins to escape through the vent hole. |