I have a 2006 F250 FX4 that I'm running Moto Metal 950s (-12 offset ,4.5 backspace) with a 33 x 12.5/18 Toyo M/T tire now no lift or level no problems. I would like to go to a 35 tire (285/75) that's 35.1/11.6 or a 35 x 13.7. Will this set up rub or will I need a level kit. Is anyone running something like this and do you have pictures. It looks like there is room but I'm ordering tires online and don't want to have to return them. Thanks guys.

 

With stock wheels they will rub.
With your offset, it looks like they will be fine.

You could always try it and if it needs leveling kit you can install it later.

 

Thanks, I ordered them today.Well see how they fit. 285/75r18- (34.8 x 11.3) Toyo at2.