Uhaul 12x6 road trip tire psi

First time hauler here. I’m pulling a 12x6 Uhaul halfway across the country so I’m trying to get this right. Can’t seem to find a straight forward answer. What’s the proper psi for E load tires when pulling 3-4k pounds? Also, do you inflate all 4 tires to that pressure or just the rears? I run 255/85/r16 ST Maxx’s FWIW

 

Look your size up on this chart and inflate to the desired weight rating.
420bcacc-01bf-42c9-840e-55344685c842.pdf (bfgoodrichtires.com)

 

Tire size isn’t on there thanks though

 

Sure it is.
First page of the LT tires.

 

If they are “trailer” tires ( which they should be) they should be inflated to the max pressure as shown on the tire. Trailer tires are designed to run at max pressure. Under inflating trailer tires causes them to over heat and can lead to catastrophic tire failure. If they aren’t trailer tires then ask the people at UHaul for the proper inflation.
Oops, just realized your are asking about your truck tires.

 

My bad, I stopped scrolling when I hit the European section. Got my answer thank you