Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.
I had the Nitto Terra Grapplers on before in the same size (285/60/18) and switched to the Coopers Zeon LTZ's a couple years ago when they were new. I haven't had any issues with load or sidewalls, even on some very difficult terrain. One time I couldn't help but run up against a very sharp rock. I heard a loud squeal, and thought I had sidewalled myself, but it was just the rubber rubbing on the rock. The tire was fine with no damage at all. All this while fully loaded with 6 people and lots of gear. So I'd say that was a pretty good test of the load and sidewall strength of the Cooper Zeon LTZ's.