1. Drain the gearbox oil (see "Gearbox oil change").
2. Remove the decorative caps of the front wheels (if they are installed).
3. Using a screwdriver, remove the front hub caps.
4. Loosen the front hub nuts by straightening the bent flanges of the nuts.
5. Loosen the wheel mounting bolts and hub nuts. The hub nuts are tightened with a high torque, so it is recommended to use, for example, a piece of pipe as a lever.
6. Apply the parking brake, place chocks under the rear wheels and raise the front of the car using secure supports. Remove the front wheels. After this, completely unscrew the hub nuts and remove the thrust washers installed underneath them.
7. Disconnect the steering knuckles from the suspension arms by unscrewing two ball joint mounting bolts on each side.
8. By moving the shock absorber strut outward, remove the splined tailpiece of the inner joint housing of the left front wheel drive from the wheel hub.
9. Similarly, disconnect the right front wheel drive from the hub.
10. Using a mounting blade, press out the inner joint tail from the differential axle gear and remove the left front wheel drive.
11. Press the right front wheel drive out of the axle shaft gear and remove it.
12. Before installing the front wheel drives on the vehicle, be sure to replace the retaining rings on the tails of the inner joint housings, otherwise the drive may spontaneously jump out of the axle gear while driving. 13. To install the front wheel drive, first insert the splined tail of the outer joint housing into the wheel hub, install the thrust washer and screw the hub nut until it stops, without tightening it completely.
14. Then insert the splined tailpiece of the inner joint housing into the inner joint seal and turn the drive shaft slightly so that the splines of the tailpiece and the axle shaft gear align.
15. Move the front suspension arm down and, using a sharp movement of the shock absorber strut with the steering knuckle, press the drive into the axle shaft gear until the drive is secured with a retaining ring.
16. Check the reliability of the drive fixation in the axle shaft gear: grab the shock absorber strut fist with your hands and try to forcefully pull the joint tail out of the gearbox. If this is successful, try pressing the drive into the gearbox again. If after the second attempt you are able to remove the drive manually, replace the retaining ring with another one.
17. Install the second front wheel drive in the same way, removing the technological plug from the axle shaft gear.
18. Attach the shock absorber strut ball joints to the steering knuckles (see item 7).
19. Install the wheels and tighten the wheel mounting bolts until they stop, without tightening them completely.
20. Place the vehicle on its wheels, removing it from the supports, and tighten the hub nuts to the torque specified in appendix 1.
21. Lock the hub nuts by bending (for example, with a blunt chisel) locking flanges of nuts into grooves of tails of outer hinge housings.
22. Install the hub caps.
23. Tighten the wheel mounting bolts to the torque specified in appendix 1.
24. Install the decorative wheel covers.