I went thru replacing tires on our 26BH last year. The wheels that shipped from the factory all had a model/manufacturers' (Dexstar) sticker on them but the only one legible was the spare...the tire cover on it saved it from fading. I contacted Dexstar and the confirmed the model I had would take a load range D at the max.
2017 Ford F250 XLT, 6.2 gasser
2013 26BH (traded)