| Factory | Number | Cross Interchange Type | Relevance |
|---|---|---|---|
| Friction Master | SXE521 | Direct Cross Interchange | 1 |
| AutoZone | MKD521 | Indirect Cross Interchange | 1 |
| AutoZone | D521CT | Indirect Cross Interchange | 1 |
| BENDIX | MKD521 | Indirect Cross Interchange | 1 |
| BENDIX | D521CT | Indirect Cross Interchange | 1 |