Just got a 2010 F-350 with 18" wheels wanted to see what size tires I should buy for it. I am thinking of the BFG TA Ko's or BFG Mud terrain

 

Do you want taller & wider ? what is the size you have now ?

 

I would like to go as big as possible for the wheel now is 275/65/18

 

I would run a 35" tire, something like a 285/75/18 or a 35x11.5x18 if you can find that. I don't like 12.5" wide, but that's just me (I like narrower). I'll likely go with a 255/80/17 on my truck (33.5x10.5x17).

Is it gas or diesel?

 

A 285/75/18 or a 295/70/18 is about a 35 inch tire that will fit on a 8 inch rim, but these sizes do not have many choices.

 

You should have the TMPS which means you need to run around 65psi or the light on the dash will be on all the time. You will need to find a load range E tire. You should be able to find a few 295's out there. I believe Nitto has some check here https://www.ford-trucks.com/forums/9...ppler-m-t.html

 

This is what I am starting with. Having BFG TA KO 285/65/18 tires put on friday. Ill post pictures after, also adding 2.5 leveling kit to the front.