Was under the 5er yesterday trying to diagnose why the galley tank is leaking when it fills up. So, while trying to get the belly pan cover off so I could see up in the belly, I saw this:
The first picture shows that the bracket is completely broken and the leaf spring making direct pressure contact with the frame.
The second picture is the same axle, but the passenger side. Here, you can see the bracket near failure.
Right next to me is a 2007 Montana - guess what? He has fatigue cracks developing on the rear axle brackets, as well.
I spoke with Bill at Lippert and he is sending me two new U brackets and has promised to reimburse my expenses of hiring a mobile welder. I am out of warranty with Keystone, but within the 2 year warranty with Lippert. He was extremely helpful and courteous on the telephone.
I do not want to move the Monty until the brackets are replaced.
I would suggest that everyone take a look underneath your 5er where the rear axle leaf spring attaches to the bracket to see if your bracket is showing signs of fatigue or worse.