I did not trust the load range E tires on my 2019.5 Silverback 33IK, so I replaced them with Sailun ST235/80R16 G rated (4080#). Our loaded weight is about 13,500# and I'm running 95 PSI based on load charts and visually comparing side flex observed on heavier 5th wheels running 110 PSI. While I only have about 2000 miles on them I'm very happy with the ride, pull and they run cooler than the original load range E tires at 80 PSI. My research suggested that Sailun is a quality tire, I don't think you can go wrong with either the Goodyear or Sailun G rated tires. In Georgia, most any big tire shop/distributor that deals with trucks / trailers can order Sailun and have them the next day or two, if they don't have any in stock.
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