1 - pin,
2 - secondary shaft,
3 - thrust washer,
4 - gear wheel of the first gear,
5 - needle bearing,
6 - synchronizer ring,
7 - synchronizer clip No. 1,
8 - synchronizer spring,
9 - synchronizer clutch No. 1,
10 - cracker,
11 - rear bearing,
12 - spacer,
13 - ball,
14 - needle bearing,
15 - synchronizer ring,
16 - second gear gear,
17 - spacer,
18 - driven gear of the third gear,
19 - driven gear of the fourth gear.