2 pictures of bottom roller and one from top of sliding mirror. Possibly from Cox
Paul from SWISCO responded:
June 7, 2018
Hi, thanks for reaching out to us. It does look to be Cox parts. I think our 23-070 concave roller assembly and our 23-082 top mount guide could work for you. Look them over and let us know what you think.
A landlord from 11570 says:
June 7, 2018
I think that's it, I just placed an order for four of each. Thanks for the prompt response. I'll let you know how I make out.