Sections of synchronizers
a - 5th gear synchronizer,
b - synchronizer 3-4 gears,
c - synchronizer 1-2 gears
1. Insert the hub and stoppers into the corresponding bushing.
2. Insert the springs into the corresponding holes of the stoppers and the hub socket, insert the balls.
3. Press the balls and move the sleeve until the balls are seated in the sockets of the sleeve.