car GAZ-2705

The vehicle can be equipped with a solid beam axle or a rear banjo axle
In order for the rear axle gearbox to last longer you need:

Removal and installation of the throttle assembly of the ZMZ-40522, ZMZ-406 engine
Turning off the ignition, disconnect the negative terminal of the battery

Removing the door (how to remove the door, see the article - “Removing, installing and adjusting the sliding door of a Gazelle car”