
The design of the gearbox is discussed in the article - Design features of the rear gearbox VAZ-2123
We wash and clean the gearbox from dirt and oil.

Gearbox - mechanical with manual shifting, has five forward gears and one reverse gear, all forward gears are synchronized

When disassembling the box, it is advisable to mark in any way, or remember where which part was, because many parts are similar.
When installing new parts, you need to take into account the gaps and lapping of adjacent parts.

Before inspecting the parts of the gearbox, thoroughly clean, remove all deposits with a brush or scraper and clean the holes and splines from possible contamination; then flush (with kerosene, thinner, etc.) to remove and dissolve any remaining oil.

The hydraulic block or hydraulic distributor, receiving signals from the electronic control unit, switches channels in the control valve block and controls the clutch engagement pressure