Riki, coincidentally the TL video LTRD linked yesterdayhttps://packardinfo.com/xoops/html/modules/newbb/viewtopic.php?post_id=225564#forumpost225564 is a presentation by one of the engineers on the original design team. He discusses the A arm rubber bushings, construction, installation and operation starting about one and a half hours in. Start around 1: 25 so you don't miss any of it but I found it interesting.
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