900cfi

What size tire can I fit on my 2013 fx4 crew without a levelling kit?

BassAckwards

Depends on what wheel size you have.

900cfi

I have 18" rims

BassAckwards

LT275/70r18

Sailor_USN

you can go bigger rims, but you have to keep an eye on the size of the tire. I've seen stock F-150s run 295/60-20 but I am sure it involves some trimming. or maybe a lot :P then again, that is a very big tire so if you go a bit smaller you might not have an issue.

11screw50

And don't forget if you change tire size and/or type you will need to adjust the air pressure accordingly. The thread in BassAckwards sig is your friend (it didn't exist when I got my tires but I did a lot of research and math and came up with 50-52psig for my LT's at stock size, his spreadsheet agrees).

Any time you are in for service where they do anything with the tires, the dealership will probably set them back to the pressure indicated on the sticker (unless you tell them otherwise).

900cfi

So I should be okay to go with 275/70/18 with no levelling kit or anything.Does anyone have any pictures with this set up?Thanks guys

BassAckwards

As long as you have stock wheels you will be fine. Put them on my fathers 4wd work truck 2008 F150.

900cfi

You bet I just have stock wheels.

PerryB

I have 275-70/18 On mine and had no rubbing at stock height. I have since put a 2 in. level on it for appearance and ground clearance.