I've had the new KO3s on my 2013 RAM 1500 (leveled, 305/70R18 F) for just over a year and have ~4K miles on them. My first impression is that they're quiet and perform great in dry and wet conditions here in the greater Seattle area. I haven't had the chance to drive them in the snow yet, because we didn't have any last season on Snoqualmie Pass. I'm confident they'll perform above expectations in snow, but I'm less sure about compact snow and ice. I run them at 40 psi front and 38 psi rear. Yes, I know a F/12-ply is way overkill for a 1500 truck, but that was the only option in that size (35") tire. They do make a D/8-ply now in a 35X12.50-18, which weighs ~5 lbs less per tire than the 12-ply tire, which I would have preferred. I would stress that it's important you have a competent installer balance them with a modern tire balancer. At the first shop that mounted and balanced them, I had a high-speed vibration. I went to another shop that does more high-end car-truck tire and wheel installations, and they balanced them perfectly, and they run smoothly all the way to 100 mph. Good luck!

Couldn't wait to get the KO3's after having such good luck with the KO2's at 59,000 miles & counting on my 2018 2500HD diesel pickup. Was about to give in and order a different option until I saw the KO3's become available...done deal. I had them installed by a reputable shop along with an alignment & front end check. I had to bring my truck back within 500mi for a re-balance due to vibration issues. The shop re-balanced & rotated them, one tire requiring just under 6oz of weight. At highway speed, I can see my passenger seat shake and feel it in my seat...not great on long road trips. They're also a bit louder than my KO2's, feel stiffer at equal pressure, cost me about 0.5-1mpg on average and are a bit more nervous feeling even after about 2,700 miles, which was a bummer. The tires look great and I'm sure would do awesome in snow & off road (which I haven't driven on yet), but they've been a step back for me compared with the KO2's. BF Goodrich was less than helpful with canned responses to my specific questions, and Simple Tire never responded to either of my contact messages. Soooo, here I sit at this very moment at my local Firestone store getting a set of Destination XT's installed and the BFG All Terrain Octagons pulled off.