More info needed .
Is that a rubber bushing inside the pivot point ? It.looks like the bushing slips over a short shaft or stud . But what stops the bushing from coming out ? It looks like the short stud will have to press out or grind the end off ?
You could machine up a new poly bushing on a lathe. Poly bushings are now widely used in suspension components.
If you don't have a small lathe, you really should get one. You will be making all types of stuff with it.
More info.
https://grassrootsmotorsports.com/ar...hane-bushings/
BTW Delrin is easy to buy. I recently machined up some Delrin O scale model railway wheels for a friend.
Good luck .