I am going to need to replace the tires on my 2010 Ram soon. It's a 4x4 with the 275/60R20 tires. I have run Cooper Zeon LTZs for several years, and have been very happy with them in most cases. They do have a stiffer sidewall (XL rated) than I need, but not too much so that I can't stand it. They handle great on the highway, do not make much noise, and do well-enough off-road for me. Most off-roading I do is mild, not wild. I deal with clay, mud, and sand. The Zeons do well with all of that. Thick mud seems to be the hardest on them, but keeping the tires spinning (and thus cleaning themselves out) gets me through... Snow is usually not an issue in my area... All that being said, I am being tempted by another tire... The Goodyear Wrangler Duratrac... It's got a softer sidewall, a more aggressive tread pattern, it's several pounds lighter, and offers a 50,000 tread life warranty, something the Coopers don't offer at all. They appear to be a well-built tire, and reviews rate them very well. I am a bit concerned about the edge of the tread pattern though, which is aggressive and could promote the cupping on the inner edge which seems common on these Rams... But, I know what I'm getting with the Zeons, and I like them well-enough. Do I stick with the Coopers, or do I try the Duratracs?