Is anyone out there running load range D tires on their Exc? I was just out cleaning up after putting new wheels and tires on the 00 Exc when I noticed that the tires that they just mounted were Ds and not Es. I ordered Es and will see what my options are from the tire store that I went through, but am wondering if I really have anything to worry about. I have a buddy that tried runing Cs on a 2500 Surbaban and had problems. The Exc is a 7.3 4X4 that sees mild off roading but is mostly highway.