I have the AT3's in that size. Plenty of power tuned or not tuned. Go for it.

 

Love these have them on mine! Cooper A/T3 Discoverer 275/60/20

 

I have 34" on my truck and they rub. Even with a 2.5" level kit and trimming. Wheels are 20" with 15 offset.

 

I'm rocking 35/12.50/20 Pro Comps on my 12 supercab and love them!!!

 

Y'all are weak. I'm killing it with 265/65/18s. No acceleration lost

 

Those are smaller than stock.

 

Mine had 260/60 on it

 

I'm going to run the stock 20" rims. I was thinking the 275/65/20 tire would work with no rubbing or having to trim anything. Will I potentially have issues? Getting close to making a decision. Thanks

 

No issues here on a level. I have those exact tires (Edit:size) and stock 20's.

 

Having this same dilemma, can't decide between a 285/75/17 (34.1" tall/11.6" wide) or a 295/70/17 (33.5" tall/12" wide) Toyo MT

Thought I've heard the height of a tire hurts gear ratio more than width...is this true?

I'm thinking I should go with the 285/75's due to my 3" rear blocks

 

Having this same dilemma, can't decide between a 285/75/17 (34.1" tall/11.6" wide) or a 295/70/17 (33.5" tall/12" wide) Toyo MT Thought I've heard the height of a tire hurts gear ratio more than width...is this true? I'm thinking I should go with the 285/75's due to my 3" rear blocks <img src="http://www.f150ecoboost.net/forum/attachment.php?attachmentid=45022"/>

Yes it hurts your gear ratio. But the Eco likes low gears. It's rotating mass that really hurts. Plus the extra surface area (width) will also reduce mileage.

Personally I would go with the 285's. But you already knew that

 

275/65r20 bfg at2's on stock chrome rims here. rancho quick lift 1.5 level and I like the 65's better better with a front level to fill out wheel well, no level the /60's look plenty big. no milage diff noticed between the two, but worse than stock size. power is a non-issue

 

275/65r20 bfg at2's on stock chrome rims here. rancho quick lift 1.5 level and I like the 65's better better with a front level to fill out wheel well, no level the /60's look plenty big. no milage did noticed between the two but worse than stock size. power is a non-issue

Got any pic's from the back of truck?

 

will snap a few

 

That'd be sweet thanks! Those are about the same width as the 34/10.5/17 KO2's I was originally looking at.

 

Look in my album under my profile a few front and side pics, running 275-65-20 Toyo AT... Awesome tire low noise, tows great, MPG will drop 1-2mpg. Performance is the same but I am tuned. 20x9 wheel 0 offset, 2.5 level and bags in rear.

 

I'm just not into the toyo at's.

Your truck looks good though, sweet camper trailer!

 

Anyone got 34's on stock 18's with stock ride-height? Level?

 

couple pics this morning, sorry about other cars - wasn't motivated to move 'em

 

couple pics this morning, sorry about other cars - wasn't motivated to move 'em

View attachment 45050

View attachment 45051

That looks good man! I wish they made these damn tires in a size close to a 34 for the 17" rims with a wider width then the 34/10.5/17's
I'd be all over that, but unfortunately since they don't looks like I'll be going with a toyo

 

I'm pretty sure they'd fit without a level as well. when I was buying my truck (used) it came down to mine with motto terra grapplers 275/60r20 or a king ranch without a level and same nittos but in 265/75r20. I thought the king ranch fronts look a little "crowded" but it drove fine with no rubbing on some minor dirt lot playing just to test 4wd/lockers/etc.

you can always throw a level on later if you don't like the look stock, a level kit is really cheap compared to a new set of rubbers!

 

I did mount one 285/65r20's when I put these on but the extra width didn't seem necessary and I didn't really want more height, not to mention the larger expense and weight of the tires.

 

yeah that's what I was figuring. Added weight width was why I was leaning towards the 275.