Yup. I had the smaller 12 22.5 and only had to put 100psi in the steers.
I often wondered about the conversions with the 315 80s that need 110 psi cold for the given steer weight and just how high those pressures go in the heat of the day...... gotta be north of 125 and that's a stiff tire.
If u r one who fits this description keep those speeds down in the heat for sure.