Don’t see the need to do anything with the tires My fifth wheel sits from Nov to May every year ... no flat spots. Just keep them aired up and covered to protect from UV exposure.
Inspect closely prior to first use of the season and inflate if needed to proper pressure
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2007 GMC Classic club cab 4x4 Duramax LBZ
2014 Alpine 3010 RE. 34 foot fifth wheel
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