Pinbox vs fiberglass
Our 2013 fifth wheel 3400RL has 1 1/2 inches clearance between pin box and fiberglass body. Since new the body has always flexed independent of the pin box when driving. On rough roads now the body almost touches the pin box when encountering a dip. I have inspected all roof areas, fiberglass siding, interior including thorough inspection of front area in closet and see no cracks or movement of any kind. Is this normal? Any similar movement in your trailers?
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