Tire pressure issue

Welcome and this type question comes up often... post in the Class A section. The best is to weigh all four corners BUT it's hard to find a place that lets you get off to the side while on the scale. Next best is axle weights at a truck stop with Cat scales, most land fills, a rock quarry, or even a large feed mill. You want to weigh your rig loaded up to travel with full fuel and water and then go to the load tables for your tires to find the correct pressure.

A moderator will move it to Class A.