I like pictures! I think a few of you may know that by now. I also like to give examples to backup what I have to say when I am able to.
Here are Michelin MS2's with 40K on them. I ran 45 psi rear unloaded and 60 loaded with 5K pin. The fronts always had 80psi. This was on my 2011 RAM Dually.
Weigh your rig! The fact is most people overinflated the rears and under inflate the fronts.
With my 2015 I am running 40psi on the rears solo because the rears on the 11 had "SLIGHTY" less tread in the centers than the edges on the rear tires running the above pressures.
My 15's front axle weighs 5,460# or 2,730# per tire. I could run 70 with little extra or 75 but with the edge wear the tires wear evenly at 80.
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