Extension Housing: Labor Times
| Standard Hours | Manufacturer Warranty Hours | Skill Level | Notes | |
| Replace | ||||
| 3 Speed - A670/31TH | 0.8 | 0.5 | B | |
| 4 Speed | ||||
| A604, 41AE, 41TE | 0.8 | 0.5 | B |
| Standard Hours | Manufacturer Warranty Hours | Skill Level | Notes | |
| Replace | ||||
| 3 Speed - A670/31TH | 0.8 | 0.5 | B | |
| 4 Speed | ||||
| A604, 41AE, 41TE | 0.8 | 0.5 | B |