You may have take a wheel off and thoroughly inspect it in the daylight for the stamp or raised metal numbers. If your actual weight doesn't require the full 110psi, then yes, lower your psi according to the Sailun chart. You DO NOT have to run the max psi indicated on the tire.
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2016 Montana 3711FL
2005 Ford F350, 6.0 diesel, short bed
Demco Hitchiker Auto Slide hitch
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