Cooper discovery at3 4s 275/60-20 installed.

[A-TEAM]

1" bigger than stock. 4th gen came with this size stock and the 5th gen stock 275/55-20 always looked too small to me. All stock, no rubbing anywhere even loaded up and full lock on the steering.

 

[rotts4u]

Can you post some full side shots? Also how is the ride and noise etc?

 

[rzims]

that's the same tire I'm looking at. A full side shot would be great

thank you

 

[A-TEAM]

Ill get a good side shot for you guys. Ride is really good and improved over the smaller tires. Noise level is about the same as the factory tires (nexen) which was surprising. Handling and braking feel much better, snow grip is excellent. Speedo is a few mph off at 70 and mpg seems about the same. Very happy so far have about 1k miles on them.

 

[A-TEAM]

Here ya go, sorry shes a little dirty and snowy but hey thats why I have the severe snow rated tires!

 

[mhb1638]

Wonder if this set would work on an air suspension... Also, did this affect your speedometer much?

 

[A-TEAM]

Its 4 mph at 70. Dash says 70 but real speed as calculated by gps radar detector is 74.

 

[ImageX]

Any reason you didn’t go with the AT3 XLTs?

PS I’ve ran the AT3s for years and love them. Excellent tire for sure.

 

[A-TEAM]

The xlt was like 150 more PER TIRE! And they werent in stock at the shop I went to. The xlt would be nice but they dont ride as nice as the 4s and are louder. I tow a handful of times a year, if I were towing everyday I probably would have got the xlt.

 

[KcRay]

Looks like xlt is 18lbs heavier per tire as well. I made it around this winter with the Dueler HL, (surprisingly well). We had a few snows of 3-5 inches. Next winter the Copper 4s are going on.

 

[BigHornDaddy318]

Looks great, fills up wheelwell nicely. Looking at a few sizes of Duratracs but don’t want rubbing or a lift since Im leasing this might be perfect size for me.

 

[Franky350]

A-Team, nice truck! I know you have posted a couple of pictures already, but I was wondering if you could upload two or three more pictures of your Coopers. I am planning on getting the AT3 4s in 275/60r20 as well. But I am still a little bit hesitant if they look wide enough. As the upsize 55 -> 60 already makes them higher, this might make them look too narrow. Whats your opinion on that. Right now we still have the 285/45r22 oe wheel/ tire combination on the truck, but plan on getting a set of 20” sport wheels.

 

[rah6887]

I have the same tires, very quiet, good grip.
White letters out for me, old school.

 

[A-TEAM]

@Franky350
The 275/60-20 is the same width as stock, they are just 1" taller overall. (33" vs factory 32") I went that route based on the advise of my tire guy, who said going wider tends to rub on the ram, unless you get wheel spacers (dont recommend those) or wheels with less offset. Ill get a pic for you.

 

[NJC1684]

Wonder if this set would work on an air suspension... Also, did this affect your speedometer much?

Works w/ air as well.

 

[Zeeya]

I have the same tires, very quiet, good grip.
White letters out for me, old school.
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Can I ask which leveling kit you have? She looks good. I have the Rebel and I trying to figure out which is the best route since I do a lot of driving on lease roads and I want to retain the best ride that I can.
Thanks

 

[Franky350]

I have the same tires, very quiet, good grip.
White letters out for me, old school.
View attachment 48629View attachment 48631

rah6887, thank you for your reply! The pictures are great and your post helps me a lot in figuring out if to go forward with these tires and size. They look awesome and beefy, better than I thought. I am old school too, white letters out ! Wish it would be easier to get a leveling kit for the air suspension, your truck looks really good!

 

[rah6887]

Can I ask which leveling kit you have? She looks good. I have the Rebel and I trying to figure out which is the best route since I do a lot of driving on lease roads and I want to retain the best ride that I can.
Thanks

I have the new Bilstien 5100's, set at level #5.
The ride is just as good, if not better than factory.

 

[Zeeya]

I have the new Bilstien 5100's, set at level #5.
The ride is just as good, if not better than factory.

Thanks for the info. Waiting for them to come out for the Rebel... Tick, Tock, Tick, Tock

 

[Franky350]

I have the same tires, very quiet, good grip.
White letters out for me, old school.
View attachment 48629View attachment 48631

I am about to order the Coopers you got. Did you feel the need to recalibrate your speedometer with the slight height increase?