New tire and size choices

[Farmingdales Finest]

So I need to replace the tires on my 2014 1500. It has the ProComp leveling struts and the Zone UCA’s. Currently has the stock wheels with the stock 275/60 r20 size Cooper Discover AT3’s.

I like everything about the current tire but counter to virtually every review I have read they are horrible in the rain.

I have the tires narrowed down to the Falken Wildpeak a/t 3w or the General Grabber atx.

Not sure if I should stick with the stock size, go to the 275/65-20 which works out to 34 tall and 11” wide or possibly the 285/65-20 which works out to 34.5” and 11.5” wide. I have no interest in adding a spacer on the stock wheels to clear the wheel well or the UCA’s.

Curious to hear what others experience is with these tires as well as sizes?

Thanks in advance!


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[daveray9]

I cant speak to the tires but I went 285.65.20 with BFGs and LOVE the way they fit.

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[Farmingdales Finest]

I cant speak to the tires but I went 285.65.20 with BFGs and LOVE the way they fit.

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Do you have pics by chance?

 

[6.7CumminsDrvr]

285/65/20 KO2’s w/Bils set @ 2.1”


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[crackerjack1957]

KO2

 

[Graygoose]

285/65/20 on a 20x9

Nitto Terra Grappler G2

 

[crackerjack1957]

Good write up here:
https://autonerdsreview.com/cooper-at3-vs-nitto-terra-grappler/

https://tirepost.com/2021/02/04/nitto-terra-grappler-g2-vs-cooper-discoverer-at3/

https://www.ram1500diesel.com/threads/nitto-terra-grappler-g2-vs-cooper-discoverer-a-t3.34705/


Thinking of trying 1 of these over these KO2's I have.

 

[Farmingdales Finest]

Good write up here:
https://autonerdsreview.com/cooper-at3-vs-nitto-terra-grappler/

https://tirepost.com/2021/02/04/nitto-terra-grappler-g2-vs-cooper-discoverer-at3/

https://www.ram1500diesel.com/threads/nitto-terra-grappler-g2-vs-cooper-discoverer-a-t3.34705/


Thinking of trying 1 of these over these KO2's I have.

Thanks for the links! They had some very informative information!

 

[daveray9]

Do you have pics by chance?

I will find a few more tomorrow.

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[Farmingdales Finest]

I will find a few more tomorrow.

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That’s the look I want. Any idea how much MPG you lost going from the stock tire to these?

My last truck a Yukon XL I would get 14-15 local and never more than 18 Hwy. My Ram I am getting 16-17 local and up to 24 hwy with usually about 21. I kind of like that especially with gas prices going up. It’s the primary reason I haven’t traded my truck in for a new 2500.


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[Quick_Shifter]

So I need to replace the tires on my 2014 1500. It has the ProComp leveling struts and the Zone UCA’s. Currently has the stock wheels with the stock 275/60 r20 size Cooper Discover AT3’s.

I like everything about the current tire but counter to virtually every review I have read they are horrible in the rain.

I have the tires narrowed down to the Falken Wildpeak a/t 3w or the General Grabber atx.

Not sure if I should stick with the stock size, go to the 275/65-20 which works out to 34 tall and 11” wide or possibly the 285/65-20 which works out to 34.5” and 11.5” wide. I have no interest in adding a spacer on the stock wheels to clear the wheel well or the UCA’s.

Curious to hear what others experience is with these tires as well as sizes?

Thanks in advance!


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They have the Cooper AT3 XLT's now that are more aggressive. Remember that you have a pick up truck with all the weight in the front most people writing reviews dont remember that. You can up size if you are looking for a little more meat. All manufactures vary is actual dimensions so its best to find the tire first. I prefer the Toyo At3 as an all around great tire. However I have sold a lot 30+ sets of the cooper At3 XLT in 2021 so far with zero complaints and Im in your region of the world

 

[daveray9]

That’s the look I want. Any idea how much MPG you lost going from the stock tire to these?

My last truck a Yukon XL I would get 14-15 local and never more than 18 Hwy. My Ram I am getting 16-17 local and up to 24 hwy with usually about 21. I kind of like that especially with gas prices going up. It’s the primary reason I haven’t traded my truck in for a new 2500.


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Im on a 2012 6speed w/ 3.55 gears, a 93 custom tune, headers/ported TB/intake., and Bils @ 2.1 everything went in before the tires. The difference between everything I just listed and then the tires was about 1-2 mpg difference that I noticed. However... in the summer I float between 13-14 city and 18tops HW. Winter is worse based on the fuel mix.

If you have anything less than 3.55 gears Id go with the stock or maybe 275.60.20s over these... I wish I had larger gears, mine dont suck but if I had 3.21 Id be frustrated at the way it would shift.

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[Farmingdales Finest]

Im on a 2012 6speed w/ 3.55 gears, a 93 custom tune, headers/ported TB/intake., and Bils @ 2.1 everything went in before the tires. The difference between everything I just listed and then the tires was about 1-2 mpg difference that I noticed. However... in the summer I float between 13-14 city and 18tops HW. Winter is worse based on the fuel mix.

If you have anything less than 3.55 gears Id go with the stock or maybe 275.60.20s over these... I wish I had larger gears, mine dont suck but if I had 3.21 Id be frustrated at the way it would shift.

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Thanks for the info! My truck has the 3.21 gears and everything is stock with the exception of the level. With what you are telling me I probably won't go larger than the 275/65-20's.

 

[daveray9]

Thanks for the info! My truck has the 3.21 gears and everything is stock with the exception of the level. With what you are telling me I probably won't go larger than the 275/65-20's.

Some people have no issues, Id get some other opinions but even with 3.55 the shifting and lag is noticable to me. I should also mention I started with the stock size (275.60.20) with my first set of BFG A/Ts after the lift and noticed no MPG difference from the goodyears. I think you would be fine with 275.65.20 and it should save you some $. A half an inch wont be that noticable IMHO. Good luck, post pics for us!!

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[Farmingdales Finest]

Some people have no issues, Id get some other opinions but even with 3.55 the shifting and lag is noticable to me. I should also mention I started with the stock size (275.60.20) with my first set of BFG A/Ts after the lift and noticed no MPG difference from the goodyears. I think you would be fine with 275.65.20 and it should save you some $. A half an inch wont be that noticable IMHO. Good luck, post pics for us!!

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The mileage I quoted is with the stock size tire and the leveling kit since I got it. When I got it used it had the stock Goodyear and I went to the Coopers and didn’t notice any less mileage. Which I am very happy with.

I have a friend who has the 275/65-20’s on his 2012 and they IMO look good. No idea what he gets for his mileage.


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[Tulet]

My 2018 Longhorn with NITTO Terra Grappler G2
35 x 12.5 x 20 on stock rims, but did need a 1 inch spacer.

 

[GIJoe2010]

I was running 275/65/20 on my OEM rims with Zone UCAs and Bilstein 5100s (@2.8) and I got the life of them at 50k miles on the Cooper Discoverer ATP/AT3. That size looks good as such and I didn’t need to trim the fender liners or no rubbing on the suspension. They ran well all the way to the end, but did get squirrelly when I “played” in the rain.

After getting my money’s worth (after 6 years) I just replaced them a month or 2 ago with 35s and new wheels. Pro Comp 32 17x9 -6 with Kenda Klever R/T 35/12.5/17 . . . but now they look small on my truck just leveled and a (Zone 1.5”) body lift.

 

[Farmingdales Finest]

I will find a few more tomorrow.View attachment 461631

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Well I got the new tires earlier this week. I ended up getting the Cooper Discoverer Rugged Treks in 275/65r20. The advertised specs are slightly bigger than most 285/65’s at 34.7/11.5. So far they are much better in turns than the AT3’s I had before and nearly as supple on the bumps. They are noticeably heavier and at least on local driving I went from 16-17 to 14-14.5. Not the end of the world.