Transmission
The drive gear of the main gear is made integral with the shaft (shank) and is installed in the neck of the gearbox on two tapered bearings.
Remove the transfer case and clean it of dirt
Drain the oil from the transfer case.
The transfer box VAZ-2123 is designed to change the amount of torque and distribute it between the front and rear axles.
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.
Wash gear parts thoroughly before inspecting.
This will make it easier to identify wear and damage to parts