Mainshaft: Labor Times
| Standard Hours | Manufacturer Warranty Hours | Skill Level | Notes | |
| Replace | ||||
| 5 Speed | ||||
| MG5, MY2, M50 | ||||
| Old Style | ||||
| 2WD | 7.3 | 5.2 | B | Includes: R&I Transmission. |
| 4WD | 9.8 | 7.0 | B | Includes: R&I Transmission. |
| NOTE | ||||
| With Skid Plate, Add | ||||
| Old Style | 0.5 | 0.2 | B | |
| New Process MW3 | ||||
| Old Style | ||||
| 2WD | ||||
| Without 3500 HD | 7.3 | 5.1 | B | Includes: R&I Transmission. |
| With 3500 HD | 7.3 | 5.2 | B | Includes: R&I Transmission. |
| 4WD | 8.0 | 5.9 | B | Includes: R&I Transmission. |
| NOTE | ||||
| With Skid Plate, Add | ||||
| Old Style | 0.5 | 0.2 | B |