I believe FR purchases all of their Ford "E" chassis in the 158" WB length and then "Stretches" them for the various WB lengths for the many models they build. Yours was stretched to 223" for the 300SS model which is the same as ours. The "stretches" are done at a Coachmen plant and are very professionally done.
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2014 Lexington GTS 300
2012 Jeep Liberty Toad
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