2013 F150 Tire Options

I have a 2013 4x4 F150 running 275/55/20 factory tires and am about to have to replace them. I am wanting to go with a little bigger all terrain tire on the next set but am not sure if I want to mess with a level kit. I drive 40K miles a year +\- . Anyone have any experience and pics of what they have done and if they have rubbed?

Thanks!

Go to F150forum.com
They have asked and answered this question about a 1000 times. Good luck.

275/60 will work.