Input Shaft · Transmission
| System | Transmission |
| Subsystem | Input Shaft |
| Assembly | Input Shaft |
| Fastener | Castellated Nut |
| Thread | M18x1.5 |
| Grade | 6.8 |
| Years | 1972–1981 |
| Vehicles | 911SC, 911T/E/S |
| Confidence | Factory Verified |
Source: Porsche 911 Workshop Manual, Section 3 (Transmission), page 312 (Tightening Torques, Type 915 Manual Transmission)