1 - input shaft,
2, 9 - synchronizer ring,
3 - spacer,
4 - needle bearing,
5 - fourth gear,
6 - rear bearing,
7, 14 - retaining ring,
8 - pin,
10 - cracker,
11 - third gear,
12 - needle bearing,
13 - synchronizer clip No. 2,
15 - synchronizer spring.