A 3rd recommendation for the Continental AT's. I've got 17,000 on mine and they have lots of tread left, are still quiet, and provide decent off-road capability. I have run KO's and Cooper's and the Continental's are much quieter, and seem to have the same grip in the dirt/rocks. Not so much in the mud though....
Well, I have had Cooper and BF Goodrich, and like them both very much. I just purchased a set of Continental AT’s, and so far am extremely impressed. They don’t look very aggressive on a website, but in person they look better. Great traction in dry off road conditions, but I have not had the chance to try them in wet conditions. Very quiet on highway. Load range E, so plenty stout.
So, here is what I have found with real world experience... My 6.2 Denali 4x4 CCSB has 7500 miles on it and an avaerage mpg of 21.8. My Tundra that I traded for it averaged about 17. My work truck is a 2016 F150 with the 5.0 and I am averaging about 19.5 over 11,000 miles. I just drove a rental Dodge with the 5.7 for 4,800 miles and got right at 20 mpg. All trucks 4 wheel drive CCSBs. All mpg's are calculated---not what the display says. And my 6.2 easily smokes any of the others.
I changed out the factory Goodyear street tires on my 4wd Denali at about 2,000 miles. I went to the slightly larger 275/60-20 size. I like to drive off road so I wanted a "LT" tire. The only one I could find in that size was the KO2. 14 pounds heavier per tire, but really not that big of a change in drivability. I've lost about 1 mpg...
Sorry I'm a little late responding but I put 275/60-20 KO2's on my stock rims on the stock suspension of my 17 Denali. No rubbing. I didn't want to level it yet and screw up the magneride. I will give it a couple years, and then level it and put 18" wheels and bigger tires on it. I like the extra sidewall for my ventures off the beaten path.
My 2017 Denali 6.2, 8 speed had vibration issues. I took it to the dealer and they replaced one tire and road force balanced them all. This took away most of the vibration. I have since changed tires to KO2's and I have no vibrations at all anymore. My 2017 Denali 6.2, 8 speed had vibration issues. I took it to the dealer and they replaced one tire and road force balanced them all. This took away most of the vibration. I have since changed tires to KO2's and I have no vibrations at all anymore.
New owner here. I just purchased a 2017 Sierra Denali CCSB, 4x4, 6.2 about a month ago. I got what I think was a good deal, $61,000 sticker, and paid $48,500. Plus they gave me $19,000 for my 2011 Tundra that had 140,000 miles (in excellent shape). I have been monitoring this site for the past couple months, and really appreciate all the input and expertise the members provide. I had to take my truck back to the dealer for vibration issues, and I was afraid I got one of the vibrators I have read so much about. Luckily they Road force balanced the piece of crap Goodyears, and replaced one. No more vibrations after that. Today I purchased some LT275/60 20 BFG KO2's at Discount and it is amazing how much better the truck rides and handles. No level kit installed (yet) and they fit fine. I have made a few minor mods and plan more in the future. Thanks to all of you for the great ideas!
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