Anyone running 265/70/18's?

[LT1MCSS]

Is anyone running a 265/70/18 over a stock 265/65/18 tire?

 

I'm trying to decide between sticking with a stock 265/65 tire or move to a 265/70 or a 275/65

 

It doesn't seem like there are a ton of options out there for either the stock 265/65 or the 265/70. There are quite a few options out there for 275/65's. Clearly the 275 is more popular.

 

One of the advantages of the 265/70 is that the tires are relatively the same weight as the 265/65 tire and its not any wider. It doesn't appear like it will add much in terms of rolling resistance and weight. Some concerns I have with the 265/70 though is that the tire is going to look funny proportion wise seeing how tall it is vs the width. Its about an inch taller than the factory tire but yet still 10.43" wide.

 

With the 275/65, size wise i think this is the perfect tire. Although it comes with its advantages and disadvantages. The advantage is i think proportionally it will be better than the narrower 265. On the down side some sets of these tires are as much as $150 more than a set of matching 265/70's. Along with that weight you're also picking up an extra 8-10lbs per tire (according to Tirerack weights) plus adding almost a half inch in width all around which would add to the rolling resistance. The added weight and width will have negative effects on gas mileage I'm sure but the question is how much.

 

Anyone else have any thoughts on the subject?

 

If it makes a difference this would be going on a stock ride height 2009 Avalanche with a 2" Rough Country Leveling Kit

[Ryan00TJ]

I'm running Cooper AT3's P275/65/18s on mine. Stock suspension with no rubbing highway or offroad. They look much better than the smaller stock tires. Went from LT245/75/17C to these and after my tune was readjusted for the tire size it seems I might have lost .5mpg. Daily drive the truck to work. 55mph two lanes. 18.5-19.5MPG Summer and 16.5-17.5MPG Winter.

[LT1MCSS]

Thanks for the input. The more i dug into it last night it seems like the 275/65/18 is the better tire to run. In my case I won't have to adjust for tire size in the computer size my truck already has 275/55/20's on it. Its only a 0.54% tire diameter difference.

 

I'm looking at the:

Cooper Discoverer AT3's

Nitto Terra Grappler

Yokohama Geolander ATS

Bridgestone Dueler Revo2

 

I would love to get a set of Cooper Zeon LTZ's but they don't make them in that size in 18's. The AT3's seem decent. They are the cheapest out of the group by more than $200. I'm not the biggest fan of the sidewall design but it's not horrible.

[wurgs]

The 275/65s are a good choice, thats what I run. It fills the wheel wells better and haven't had any rubbing issues. The Coopers are good tires, great on snow and ice but seem to like to throw rocks when on gravel as most AT tires do. They also don't seem to self clean when going through deep mud as well as others we've tried. Not sure about longevity as we just started to use them on work vehicles and don't have many miles on them yet.

[Big Whiskey]

I've been very happy with my 275/65/18 Cooper AT3's so far. I went with the 6-ply (Load range C), LT version. MPG drop is hardly noticable.

[chrisb1]

On my 2011 Silverrado 3500HD SRW, I am using Michelin LTX MS/2 LT275-70-18E and they fit fine with no rubbing.

[Matt_]

Im running the P275/65/18 Toyo AT-IIs on my Commander. Went with the P rating to keep weight down and they were very affordable... ~$160ish each shipped. Theres an LT version as well.

 

... kind of wish i went with the LT version to help the sidewall when aired down offroad.

[LT1MCSS]

Im running the P275/65/18 Toyo AT-IIs on my Commander. Went with the P rating to keep weight down and they were very affordable... ~$160ish each shipped. Theres an LT version as well.

 

... kind of wish i went with the LT version to help the sidewall when aired down offroad.

 

 

The Toyo Open Country AT2's caught my eye as well.

[gnet158]

Matt, how do you like the new Toyo's O/C II's?

[Matt_]

Matt, how do you like the new Toyo's O/C II's?

 

 

They're very similar to the previous version that I ran on my 2005. So far, so good. Smooth and quiet on the street. Haven't had them in any real snow yet but I really liked the originals so I'm not expecting them to be much different.

 

Was very impressed with them offroad and on the rocks. They were gripping rock surfaces extremely well, and even my old man pointed out that my A/T tires seemed to grip & climb up rocks easier than some of the M/T tires on the other trucks.

 

[gnet158]

I ran a set of the orginal set on my Sierra, at about 50% + of tire wear I noticed they'd spin farily easily. Those were '20 so I'm not sure if that had anything to do with it. How many miles you got on them now? I'll keep bugging you until your past 50% to see if you have the same results. Other than I loved the tires.

[Matt_]

I only have about 5k on my current set. I had 30k on them when I traded my Silverado. My old man had in the high 70k range when he replaced them on his expedition. And I used to install them on plow trucks at work that would run them down to practically bald... never noticed decreased traction until they got down almost to the wear indicators.