I noticed you mentioned front end vibration sometimes at higher speeds. I purchased a 2009 Fleetwood Icon in February. Its a bit similar to the Winnebago View with the Sprinter chassis. I started noticing the same regarding vibration. The tires were about due for replacement so I had that done with no improvement. I took it back to have it checked and balanced again but that did not help. Next, I took it elsewhere and they said it had a worn ball joint on the left so those were replaced and the rv was aligned, too. Well, none of it has made any difference. Any other suggestions?