Your posted front and rear weights are reversed. Use the chart and set pressure in all rear tires the same based on the heaviest weight on the rear axle. Same with the front. You may want to look at more evenly distributing the load. And depending on axle, you may be overloaded in the Front...
Michelin tire guide: (Minimum required pressure to support that weight)
Front tire -- minimum pressure for 4500# is 90psi
Rear tires -- minimum pressure for 7300# is 75#
Normally add 5-10 lbs over minimum as a cushion. 100psi in the front sounds good. If you have 90-100 psi in rear tires you may have a harsh ride.
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U.S. Coast Guard retired- 1956-1985
Pensacola, Florida
2016 Siesta 24ST
1972 Moto Guzzi Eldorado
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