Differential Assembly: Labor Times
| Standard Hours | Manufacturer Warranty Hours | Skill Level | Notes | |
| Replace | ||||
| THM440-T4 & HM4T60 | 11.3 | 6.3 | A | |
| THM 325-4L, 4 Speed | 3.1 | 2.1 | B | |
| Overhaul/Rebuild | ||||
| THM 325-4L, 4 Speed | 5.1 | 4.3 | A |
| Standard Hours | Manufacturer Warranty Hours | Skill Level | Notes | |
| Replace | ||||
| THM440-T4 & HM4T60 | 11.3 | 6.3 | A | |
| THM 325-4L, 4 Speed | 3.1 | 2.1 | B | |
| Overhaul/Rebuild | ||||
| THM 325-4L, 4 Speed | 5.1 | 4.3 | A |