White Hawk trailer had water leaking through antenae crank. Roof is still sealed very well. Is it possible that water had pooled around the shaft and leaked past it when the trailer was moved.
My roof was completely prepared with Eternabond 4inch tape on each and every roof item by the dealer. I'm the second owner. In addition to the o-ring I'd consider that.
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2016 Jayco Whitehawk 28DSBH
2020 GMC Sierra 2500HD-Dmax