Last fall, I installed a set of Sailun tires on my Montana, upgrading to G rated tires. I’m running only 90-95 pounds in the tires. They are shaking the camper quite a bit. Last week, we cravked th...
BALANCE YOUR TIRES! Tire shops do not usually balance trailer tires BUT if you don't it can shake the camper to bits.
Running G rated tires at less than maximum pressure will not likely cause shaking as long as the pressure used is adequate for the trailer weight. Goodyear publishes an inflation chart for their G614's for that very purpose. On mine I run 90 psi.