System Specifications
| Rear Differential (All - Wheel Drive) | Axle Lubricant GM P/N 12345977 (Canadian P/N 10953482 or SAE 80W - 90 GL - 5 gear lubricant |
| Rear Differential (All - Wheel Drive) | Axle Lubricant GM P/N 12345977 (Canadian P/N 10953482 or SAE 80W - 90 GL - 5 gear lubricant |