to be honest here as i critically am , why does the issue that many motorhomes experience across the board , no matter who made the coach , i have spoken to people where the alighnment was dead on perfect, nothing worn, missing , mis adjusted , and the one thing that did actually repair the issue was a rear tack bar.and its pretty much the same issue , driving over speeds of 50 mph, the coach drives like your in a tornado and its all over the road , after the addition of a rear track bar, its perfect ,no change was made to alignment settings , tire pressures, tire change , weight Distibution , this is my point, you people are i do believe not hearing me or im not explaining it , im sorry i even made a question and stated i have 20 years bmw experience, i was ase certified in bmw. bme e/v and bmw m performance , not bragging , just stating that im not green nor an idiot as some may believe, or think,