Case: Labor Times
| Standard Hours | Manufacturer Warranty Hours | Skill Level | Notes | |
| Replace | ||||
| NP-242 | ||||
| Rear Case | 3.0 | 2.1 | B | Includes: R&I Transfer Case. |
| Front Case | 5.2 | 3.5 | B | Includes: R&I Transfer Case. |
| NP231 Non-Synchro, NV231 | ||||
| Rear Case | 3.0 | 2.1 | B | Includes: R&I Transfer Case. |
| Front Case | 4.0 | 2.9 | B | Includes: R&I Transfer Case. |
| NP241 | ||||
| Rear Case | ||||
| NOTE | ||||
| With Skid Plate, Add | 0.4 | 0.2 | B | |
| Front Case | 4.5 | 3.2 | B | Includes: R&I Transfer Case. |
| NOTE | ||||
| With Skid Plate, Add | 0.4 | 0.2 | B |