Structural design issues?
We recently took our 2011 Passport by Keystone trailer to have the wheel bearings checked and greased. Upon inspection, the repair folks found cracks in the I-beam frame above all four wheels. We do...
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The frame probably needs 3 cross members added at the spring hanger locations to keep it from twisting and breaking. Boxing the i-beam wouldn't be a bad idea either. Generally, RV trailer frames are typically built as thin and light as possible for their GVWR, so they are inherently weaker than other types of trailer frames built heaveir for hauling cargo.
