Gears and shafts of the gearbox
The black circles show the gear numbers of individual gears (AR – reverse gear).
1 – primary shaft, 2 – secondary shaft, 3 – reverse gear axle, 4 – reverse gear pinion, 5 – bearings, 6 – retaining ring, 7 – support needle bearing

1. Using a press, remove the bearing-gear assembly for 4th gear, synchronizer and 3rd gear from the primary shaft (mark the position of the sliding sleeve relative to the hub).

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2. Replace the bearing and on the press, using the 80317 F device, the 8013 T-B3 and B4 support plate or the special Facom U 53 T2 puller or another similar one, install the bearing on the shaft.
3. Install 3rd gear pinion, hub and 3rd-4th gear sliding clutch (the markings made during disassembly must be observed), 4th gear, bushing and then bearing. Press should be used.
