This may sound a little crazy... but have you reached put to Ford? Give them your VIN... they can tell you about your engine and chassis. I bought our 2018 Hurricane in December with 5800 miles. I called Thor and Ford... want to guess who is honoring the 3 year ??? miles warranty... Ford is. They were great and my RV is now register with Thor and Ford as the new owner. Thor did sent me all build sheets when asked. Thor really has nothing to do with the chassis in my mind (i could be wrong) as they purchase them from Ford. Then build on top, so they really have no idea whats under their body. Just my 2 cents.
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