Sorry to create another thread on tire pressure.

I've been searching like crazy but have been unable to find something to go off of. I'm running 265/75R16 with a rated E load range winter tires. As these are not factory sized for the truck, I need to figure out what range tire pressure I should be running them at. Truck weight is sitting at about 5100lbs with accessories, tools and weight in the back for winter traction.

The curbweight of this truck is about 4700lbs: 5.4L XLT supercab w/ 139" wheelbase.

Anyone else running a similar setup?

 

Try 40. If the handling is mushy, bump them up to 50.

 

I run a 285/75-17 load range E Nitto Terra Grapplers on my '02 extended cab. I run 45 psi up front and 40 in the rear right now. Regular load of a full tank of gas, and tool box with gear (200 lbs. ) and myself. Hope this gives you an estimate.

 

My 285-70-17s have a max of I believe 70psi? Well when I got them on thats what the dumbasses put in them. Let me tell ya that was helva ruff ride! I found that the happy med is around 50psi. Still able to load her up but still a nice ride..... I would start at around 60psi and drive it around a little bit and release pressure until you find something that suits your driving style. Do you tow allot? You should take that into consideration as well...