Differential: Labor Times
| Standard Hours | Manufacturer Warranty Hours | Skill Level | Notes | |
| Replace | ||||
| 4T40E | ||||
| Differential Assembly | 11.5 | 8.6 | A | Includes: R&I Transaxle. |
| NOTE | ||||
| With Compressed Natural Gas, Add | 0.5 | 0.4 | A | |
| With AC, Add | 1.2 | 1.1 | A | |
| 3T40 | ||||
| Differential Assembly | 13.7 | 9.5 | A | Includes: R&I Transaxle. |
| NOTE | ||||
| With Compressed Natural Gas, Add | 0.5 | 0.4 | A |