Yep 3. You may be lucky and have an access hole in the gearbox tunnel. Otherwise you need to get in underneath for the front , which really requires a lift. I put a post on the pre cx trad area on my 3.7l Roadster and accessing the front ujs.
For the rear you can remove the tool tray and access the nipple.

Just give them a half pump of grease once a year


JohnV6
2022 CX Plus Four
2025 Renault Scenic Alpine etech "Yvette"