Scorpio disease crossbar VA

With my first Scorpio I changed my crossbars wg of the emptied bushings at 150,000 – after that the driving was fun again…. – unfortunately the rubbers have kept only 50,000 – then I had again fluttering brakes – restless driving behavior….- … – new Scorpio – 160,000 same problem – have philosophized with my workshop about the problem – they know the problem – and also a crazy solution – they told me that was already a Sierra disease – and you shorten e infach die Büchse im Gummi – schon die VA no longer has a game… – especially with vehicles that are heavily loaded – like mine – big trailer etc. WHAT HOLDS YOUR DAVON?