
Adjusting the tension of the differential bearings and monitoring the lateral clearance in the engagement of the main gear
The lateral clearance in the engagement of the main gear, which has increased due to wear of the teeth, is not reduced by adjustment, because this leads to a disruption of engagement and, as a consequence, to increased wear of the teeth, increased noise or breakage of the teeth

When buying rear hubs for a car, you need to consider that there are old-style and new-style hubs.
Let's look at the main differences between the hubs so as not to confuse them during installation.
Usually vibration on ZIL-5301 is felt most at a speed of 60-70 km/h
If vibration occurs when driving ZIL-5301:

Possible malfunctions of ZIL-5301 brakes
If, when you press the brake pedal, you feel a sharp braking of the front brake with it being pulled to the side, then the front wheel pads have clearly worn out completely, and because of this, the brake disc is worn out

Before installing the oil pump, check the ease of rotation of the gears
The gears of the assembled pump should rotate freely by hand, without jamming or jerking