Transmission Clutch Help
 

Ok, so i bought a used clutch off the site. And i know nothing about clutchs but it from what i gathered.

Its a center-force dual friction clutch
i got the clutch plate and housing and release bearing.
The problem is the ring and thing that hold the release bearing on the housing is missing.
MY question is:

What is that part of the stuff called?
Can i get it at an OReilly?
Or can i use the old one from the stock clutch that's on my car now?

Thanks.

Use your old ones or order new ones from mazdatrix