Both videos are post me fixing the gap...Sorry i didn't take any before. It was tough to see where the lens of my phone wouldn't get low enough to show the gap and how you could see the driveline and cement below the cab.
I used some weather stripping to fill the gap without any sealant as the Thor rep told me to have the dealer fix it all.
I haven't had it on the road yet, but my bet is that the cab becomes substantially quieter and cooler while driving mid-day.
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