Thinking about changing out to duratracs on my oem 18" wheels. They check all the boxes for me for snow rated and looks. One thing that's unknown to me is the sidewall rating. It's an sl load but that doesn't seem to equate to number of plys. Does anyone know how the sidewalls are on this size of duratrac? I want better sidewall puncture resistance for light offroad rocky trails. Assuming anything is better than the stock hankooks?