Grand Design Imagine

THis is not a Gran Design issue but simply an issue where all RV manufacturers are failing the consumer. They engineer and assemble to minimal standards and suffer lots of failures across all brands. I do like Gran Design but this is simply an area where GD is no better than anyone else. They are all building/assembling the same junk using the same questionable components and techniques.
You will have to step up to a Mor Ryde independent suspension if you are really looking for something more substantial than the basic run of the mill stuff.