Central differential housing - threaded cardan shaft 1. Bolt: Aluminum bolts; 11 pcs.; replace; 2. Central differential housing; 3. Ball bearing: for flange shaft; 4. Spacer sleeve; 5. Bearing shield; installation position: the nose must enter the groove of the intermediate housing of the gearbox; 6. Spacer sleeve; 7. Adjusting washer; 8. Center differential ball bearing; 9. Central differential10. Central differential ball bearing; 11. Pressure spring; 12. Adjusting washer; 13. Disc spring; mounting position: the side curved outwards faces the shaft seal "pos. 17"; 14. Retaining ring: for flange shaft; 15. Bolt: steel bolts; 2 pcs.; replace; 16. Vibration damper: installed depending on the design; 17. Sealing ring; 18. Rear shaft with flange: without vibration damper; 19. Rear shaft with flange: with torsional vibration damper; 20. Bolt: replace; 20 Nm +90°
Torque and sequence of tightening the central differential housing, bolted cardan shaft
Tighten the bolts in 8 stages as follows.
| Stage | Bolts | Tightening torque/rotation angle |
| 1 | Aluminum bolts "1" | 8 Nm |
| 2 | Aluminum bolts "2" | screw it in manually until it stops |
| 3 | Aluminum bolts "1" | loosen again and screw it in by hand until it stops |
| 4 | Aluminum bolts "3" | screw it in manually until it stops |
| 5 | Steel bolts "4" | screw it in manually until it stops |
| 6 | "1,2,3,4" | 10 Nm crosswise |
| 7 | Steel bolts "4" | 15 Nm |
| 8 | "1,2,3,4" | turn 90° crosswise |
(The text is based on materials from the website: Audimanual.ru)