I have a 2011 XLT supercab with 5.0 and 3.55 gears. I would like to swap out the stock tires 275/65/18 for some off road tires, I dont really offroad anymore but do love the look. I'm looking at Nitto, either 285/65/18 or the 275/70 or the 295/70 Trail Grappler. I don't want to have to regear the truck, but neither do I want to wind up with a transmission hunting for gears on the interstate. Need some advice on what tire size would be best for my situation from you guys with more experience than me.. oh Im keeping the stock wheels, like the way they look,

Thanks for any help.