| Model Code | Description | |
|---|---|---|
| 01 | 623.032, 623.033, 623.048, 623.130, 623.135, 623.145, 623.180, 623.190, 623.195, 648.038, 648.135, 648.195, 658.033, 658.135, 658.146, 658.195 | HARDER REAR SPRINGS |
| 02 | 648.137, 658.137 | HARDER REAR SPRINGS |
| 03 | 658.038, 658.190, 658.195 | HARDER REAR SPRINGS |
| 04 | 658.137, 658.147 | HARDER REAR SPRINGS |