HAD all the same drawings regarding the steering gear as the Ru site. Except I could read the english. None of which broke down the steering gear
The only drawings were bolts holding the unit to the frame.
The was a note however, that said there may be a rebuild kit consider rebuilding , rather than replacement.
No links just a note with a dead end.

If you go on the site for your car, can you actually see the rack and pinion broken down?
Bill