How to combine old Ikea Pax with new?

Can you combine old Ikea Pax systems with the current Pax model?

I have an old system with shelves, drawers, doors, and a clothes rail.
I want to replace it with the new carcass.
Do the old systems fit with the new ones?

That should be no problem at all.

That should be no problem at all.

Thanks IKEA expert for your answer.

nice Weekend.