Seals and Gaskets: Labor Times
| Standard Hours | Manufacturer Warranty Hours | Skill Level | Notes | |
| Replace | ||||
| NP231 Non-Synchro, NV231 | ||||
| Input Shaft Seal | 2.1 | 0.0 | B | |
| Output Shaft Seal | 0.5 | 0.3 | B | |
| Front Seal | 1.3 | 0.9 | B |
| Standard Hours | Manufacturer Warranty Hours | Skill Level | Notes | |
| Replace | ||||
| NP231 Non-Synchro, NV231 | ||||
| Input Shaft Seal | 2.1 | 0.0 | B | |
| Output Shaft Seal | 0.5 | 0.3 | B | |
| Front Seal | 1.3 | 0.9 | B |