With all the blowouts on one side plus a much hotter hub on that side, that seems to point to a bearing. Have you given that hub a few extra squirts of grease? Maybe that would move things around in there and help get you home. I'd probably bite the bullet and service that bearing. If the hub temp lowers, you've identified and fixed you're immediate issue and reduced the chances of another blowout on this trip. If not, at least that possibility gets (presumably) eliminated as the cause of the heat. Curious to hear others' thoughts. Again sorry to hear about your woes, but at least you're gathering valuable data points that should help you get to the solution.
EDIT. Saw Dave's post above. Good point about the sunny side vs shaded side. Tough call on the bearing. Let us know how you play it.
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2005 TM 2720, 15" tires. Awning, oven, LP tanks removed (for now). Battery to the rear.
2014 Audi Q5 diesel w/ tow pkg
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