Mainshaft: Labor Times
| Standard Hours | Manufacturer Warranty Hours | Skill Level | Notes | |
| Replace | ||||
| 4L80E | ||||
| Gear Unit Assembly | 6.6 | 4.6 | A | Includes: R&I Transmission. |
| Standard Hours | Manufacturer Warranty Hours | Skill Level | Notes | |
| Replace | ||||
| 4L80E | ||||
| Gear Unit Assembly | 6.6 | 4.6 | A | Includes: R&I Transmission. |