Just found this thread. I put my trailer to bed for the winter last week, but didn't check the axles. In September we returned from a 10,000 mile trip on some very rough roads in the Pacific Northwest, NW Canada, and Alaska. So, if we had a clearance design problem, it should definitely have shown up after that trip. Thanks for posting this!
New: 2016 Rockwood Signature Ultra Lite 8244WS 5th Wheel
2015 Ram 2500 CC-SB 6.7L Cummins turbodiesel 4x4
Sold: 2012 Rockwood Mini Lite 2109S