Michelin LTX M/S 265x75 Load E @80psi. I don't tow anything.......yet, but when I bought the truck from the dealer they already had the tires up at 80 (I am guessing they put them on because the tires were brand new). I think that I may need to air them down a little .
I have Michelins on mine, and I am running 50 up front and 40 in the rear. There is no weight back there, so there absolutely no reason to have a lot of air in there. All you are doing is making the contact patch smaller and causing the tires to wear faster.
If I pull my flatbead 20ft gooseneck, I bump them to 60 psi and that handles all the weight I put on it.
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