| M22 | M20 | M21 | 3sp | |
| 1st gear ratio | 3.74 | 3.05 | 2.54 | 2.48 |
| clutch gear | 9930921 | 9930923 | 9930924 | |
| clutch gear – 253 | 9930922 | |||
| 1st gear | 2813489 | 2813489 | 2813489 | 7434308 |
| 2nd gear | 2813490 | 2813490 | 2813490 | 7433830 |
| 3rd gear | 2820696 | 2813491 | 2813492 | |
| 4th gear | ||||
| cluster gear | 2820694 | 2813496 | 2813487 | |
| reverse gear | 2813525 | 2813525 | 2813500 | |
| 1&2 synch | 2813515 | 2813515 | 2813515 | 7435045 |
| 3&4 sync | 7435044 | 7435044 | 7435044 | 7435044 |
| counter gear shaft | 3775061 | 3775061 | 3775061 | |
| Ring – blocking | 7434978 | 7434978 | 7434978 | |