| Standard Hours | Manufacturer Warranty Hours | Skill Level | Notes |
| Replace |
| 241, 243 |
| Complete Assemlby Without Transfer of Parts | 1.8 | 1.3 | B | |
| Note |
| With Skid Plate, Add | 0.4 | 0.2 | B | |
| Complete Assembly With Transfer of Parts | 1.8 | 1.3 | B | |
| Note |
| With Skid Plate, Add | 0.4 | 0.2 | B | |
| 1370, 4401 & 4470 |
| Complete Assembly Without Transfer of Parts | 2.5 | 1.8 | B | |
| Note |
| With Skid Plate, Add | 0.4 | 0.2 | B | |
| Complete Assembly With Transfer of Parts | 2.5 | 1.8 | B | |
| Note |
| With Skid Plate, Add | 0.4 | 0.2 | B | |
| Overhaul/Rebuild |
| 241, 243 | 4.6 | 3.2 | A | Includes: R&I Transfer Case. |
| Note |
| With Skid Plate, Add | 0.4 | 0.2 | A | |
| 1370, 4401 & 4470 | 5.2 | 3.9 | A | Includes: R&I Transfer Case. |
| Note |
| With Skid Plate, Add | 0.4 | 0.2 | A | |