Seals and Gaskets: Labor Times
| Standard Hours | Manufacturer Warranty Hours | Skill Level | Notes | |
| Replace | ||||
| Extension Housing Seal | 0.8 | 0.6 | B | |
| THM-700-R4 (4L60-4L60E) | 0.9 | 0.6 | C | |
| 4L80E | 0.9 | 0.6 | C | |
| Oil Pump Seal | ||||
| THM-700-R4 (4L60-4L60E) | 3.5 | 2.6 | B | Includes: R&I Transmission. |
| Note | ||||
| With Skid Plate, Add | 0.4 | 0.2 | B | |
| 4L80E | 3.5 | 2.5 | B |