What tire to buy ?

You might have trouble getting a set of those. I tried to order a set for my truck but alas they were discontinued (maybe just my size?) so I had to settle with a set of Geolandar HT's. They have a very similar tread pattern, but I don't do any serious offroading, mostly snow driving. They should be fine. They are pretty soft though.

 

Michelins will likely get you the best mileage and they're light so you'll have better performance/mpg's. Costco has specials on them pretty frequently too.

 

Mine came with the same. Snow/Ice performance is amazing. Street drive/noise level is good. Off-road traction is decent at best, tread a bit less aggressive than i would like. My next tires will be goodyear duratracs.

 

https://www.michelinman.com/tire/michelin/defender-ltx-m-s

MICHELIN®
DEFENDER® LTX® M/S

 

Cant even come close to recommending Cooper AT3's... had em for 30k miles and after the first 15k their traction in rain / snow / ice completely fell off, they also became SUPER loud and tread blocks wearing unevenly across all 4 tires.

Ill be getting rid of them ASAP come next fall regardless of how much tread they have left on em.

 

Michelins

 

While Cooper AT/3 are cheep, excellent summer tire they are dangerous in snow/ice. They're marked M/S but don't believe it.

 

I run MT ATZP3 Loud as F.... suck in rain but awesome off road

 

I had Michelins on my Dodge 1500, they got old and hot and the left front blew my fender off. Replaced those and now the original Taco 18 inch tires with Yokie Geolanders - they are quiet and tough street tires. The Geo 255-70/18's are 32" tall and set you up another 3/4" of axle clearance. They are 10 mm smaller in x-section, which can't be seen with the naked eye.