coilover question.

So id like to use my coil overs from last year. But the problem is I had a blown agx strut in the rear. My question is Can I just replace the struts In the rear. Because I know when you buy replacement struts they come designed for the spring to sit on top of it. I remember reading years ago. that it was possible to cut the ring that holds the spring over the coil over.

Unless they sell replacement struts for for coil overs specific idk I couldn’t find any info

any info is appreciated

Are they real coilovers or sleeves for OEM or OEM replacement struts?