I got an email response back today from avenger, they are no longer in production. And yes I think metal tech or the other company that was mentioned out of Michigan is about it for LT. a arms.. I tried to email metal tech to see if any swingarms were possible for the later year LT but their email is invalid or something I dunno. Seems like the big name and even the smaller name companies have lost interest in the O.G. Sport quad. It's really too bad.