Cooper AT3 4S

[indept]

I run 40 cold pressure.

I did the chalk test and found the fronts were happy at 39 psi cold and the backs were happier at 35 psi with an empty bed.

 

[indept]

I did notice a slight vibration recently. Between 85 & 90mph nothing below that though

Update on this, I went back to Mavis tire and had them rebalance them, 3 were out out of balance. They said the balance machine they originally used had a issue which had been fixed. After rebalance they were smooth up to 95 mph so all is good.

 

[renfrick1]

Well update my report on these
There over half the life gone and so is the Performace in the snow. There now in my book as good as Goodyear’s
They suck!!
There a good traction tire when new but like I said they suck now that there worn down over half way,Maybe 3/4 of the way.
Still, I would buy them again seeing how I got a decent life out of the tread
they seem to wear even
And a pretty quite tire
10/10 when new
7.5/10 now


Sent from my iPhone using Tapatalk

 

[Toddbigboytruck]

Have worked well for me in rain,snow, I've and dry pavement. Run quite and smooth. Can't speak for longevity yet. I Run at 42 psi.

Have you noticed any difference mileage with the tires I have to replace my factory tires I like the look not crazy with the amount of mileage that we can get on the tires. But I think this will be my choice

 

[huntergreen]

Have you noticed any difference mileage with the tires I have to replace my factory tires I like the look not crazy with the amount of mileage that we can get on the tires. But I think this will be my choice

yes I did, I lost approx 2 mpg when I had these installed. More aggressive tread and heavier than the stockers.

 

[Simpleman]

The AT3 4S is Definitely one tuff tire

 

[BRIANPETERBILT]

I had the Cooper AT3's on my third gen ram hemi, would buy them again in a second. They worked great. I had the 275/60r20 and they were pricey. I bought 17" rims to be cheaper

what psi did you run the 275/60r20s at ?