Radius Arm · Rear Axle
| System | Rear Axle |
| Subsystem | Radius Arm |
| Assembly | Radius Arm to Spring Plate |
| Fastener | Eccenter |
| Thread | M12x1.5 |
| Grade | 8.8 |
| Years | 1972–1983 |
| Vehicles | 911SC, 911T/E/S |
| Confidence | Cross Referenced |
Source: Porsche 911 Workshop Manual, Section 5 (Rear Axle), page 525 (Tightening Torques); Porsche Technical Specifications (WKD 422 720, 78-81 Models, and WKD 423110, 82-83 Models), both stating 60 Nm directly