This is the 17mm sway bar bushing that fits a bunch of cars incl E9, E23 and E21. It actually fits the REAR sway bar on the E21, 323i (320i has 16mm ones, easy to find). I am looking for a poly equivalent and have searched and unable to locate one that would fit. I've looked at tons of websites and no go. Any leads? I can buy stock OEM rubber ones but I use poly here for longevity.