Replace specific AD security groups when migrating folders to a new server

We use folder and server specific AD security groups to manage access  to our shared folders, and need to replace some of the groups as we are migrating them to a new server.

The folder specific groupss  are  ServerA-dir-folder-rw, serverA-dir-folder-ro
The server specific groups is ServerA-dir-rw, ServerA-dir-ro


We need to rename the folder groups to ServerB-dir-folder-rw, serverB-dir-folder-ro - whch attributes should we rename - cn,name,samaccountname,etc?

We need tor replace the server specific groups with ServerB-dir-rw, ServerB-dir-ro - we cannot rename those, as they are still in use on Server A. How do I replace these?
The issue is we have a lot of blocked inheritance down the folder structure, so we cant just replace them at the top level.


Thank you!