I am looking into a new tire/wheels combo on my 2012 F150 xlt ecoboost. I have no lift whatsoever...Im looking at aftermarket wheels and either Nitto trail grapplers or wrangler mtr's...I want a tall tire and doesn't need to be wide...Any real answers on this? Thanks in advance

 

What size rim? From the research I've done, I think 285/65/18 may be the largest you can go stock. My buddy has this size Terra Grapplers with no lift and no issues. I have Trail Grapplers this size that I'm installing with a 2" autospring once my first set of tires are gone. If your running 20's not sure wat size you can go up to.

 

Was sure hoping to go with 20's

 

20's, no level...well this depends on a lot, especially your offset on the new wheels.
Stock 20's are a +44mm offset. You should avoid most rubbing situations if you stay between +44mm and +18mm with these tire sizes:
275/60/20
285/55/20
285/60/20
295/50/20
295/55/20

You'll need a level to fit these popular sizes:
275/65/20
285/65/20
295/60/20

 

Guess I will be looking for a 2" leveling kit as well... Thanks

 

You can fit 33" diameter tires, 295 wide with no lift or level.

 

I'm looking at putting on LT275/70R18 on stock rims on a 2013 FX4 without any lift or leveling kit. Those should be 33.23" tall. So...they'll fit?

 

I've got 305/45R22 Nitto Terra Grapplers with no rubbing anywhere. Overall is 32.8" and they are a little over 12" wide, Truck is all stock.