I bought a couple of replacement frame arms that I was going to use the existing extension arm on. The flange bushing for the old arm was broken in two. I haven't been able to find a replacement on the internet since this part seems to have been discontinued long ago. I am also hoping to avoid having to pay another $60 - $70 for a $3 part. Has anyone else run into this and how did you fix it?

Thank you in advance!