Remove the front gearbox housing cover, which is integral with the clutch release bearing guide bushing.
Using pliers, remove the retaining and adjusting rings from the front end of the input shaft.
Using a puller, you first press the rear bearing of the input shaft, then the front bearing of the intermediate shaft.
Turn out a stopper of a clamp of a rod of a choice of transfers.
Remove the reverse light switch.
Turn away bolts of fastening of a back cover to a transmission case, remove a back cover.
Knock out the pins from the shift forks (fully slide them over the chamfers of the synchronizer sliding sleeves) (see photo).
Loosen the bolt securing the reverse gear lever and remove the lever.
Remove the selector rod retainer plug, remove the spring and retainer bushing. Remove the plugs of the gearshift rods and partially knock out the III and IV gearshift rod first, then the gear selection rod, having first turned the gear selection lever. (When doing this, take care not to damage the guide ribs of the shift forks.)
Remove the stem and shift fork of III and IV gears.
Knock out the pin from the rod and remove the shift fork of 1st and 2nd gears.
Remove the reverse gear rod and the shift fork rod for 1st and 2nd gears.
To facilitate possible subsequent disassembly, it is recommended to shorten the locking pins of the shift forks of I and II, III and IV gears by about 1 mm.
Remove the detent balls, check balls and their springs.
Remove the output shaft flange.
Loosen the four hexagon socket head bolts (socket wrench on «5») fastening the cover of the rear bearing of the secondary shaft and remove the cover.
Heat the rear cover of the gearbox housing to a temperature of 80-100°C to press out the rear bearing and remove the gear blocks.
Disassemble the gear blocks in the following order: input shaft, synchronizer cone ring and needle bearing, 3rd and 4th gear synchronizer clutch hub snap ring, adjusting ring, synchronizer clutch hub, 3rd gear gear and needle bearing.
Press out the secondary shaft, resting the puller against the gear wheel of the 2nd gear (see photo).
Disassemble the output shaft.