ok so i have a 2005 F150 xlt and i put a fat bobs 3 inch leveling kit with aluminum blocks in the rear that put the back up an extra inch too. i have 265/70R17s which are about 31s i think. on now and theyre definently too small. im in the military and another guy who parks his 150 stepside here has a leveling kit on with no blocks in the back running 285/70R17s and those are about 33s i know. his kit up front looks just a little smaller than mine. but it looks like he has room for a little more tire. Im planning on putting on Moto Metal 909 or the 'SKULL" rims which are 17x9 rims with a 5 inch backspace i think will i be able to run 35s without much problem. I think i wanna get falken wild peaks. i think theyre 325/70/17s or should i just bump down to something like 34s because i think 33s just wont fill enough space or look as agressive. thanks if you guys need a picture posted up to get a better idea let me know

 

alright there it is

 

I would play it safe and go 34s . 35s might rub turning into driveways and dips. A slight rub is loud in the truck, then you'll be looking into a body lift.
IMO , I don't think it looks good when the tire takes up the whole wheel well.
Also, I got some slight rubbing w 6inch lift and 35s.

 

I have a 2.5" leveling kit and have 295-70-18 tires which are about 34.5" and still have plenty of room. I have not rubbed a single time.

 

whats the size and backspacing of your rims

 

To wide, you'll rub.