CHANGE THEM. I have many trailers, horse, flatbed, 5ver and TT. In my experience trailer manufacturers always equip trailers with a load range tire one load range less than the trailer should really have. So do change them before the trip, and step up one load range with the new tires. ---- I have the exact same situation for my May 3 month Alaska trip. I did not want to take my large Grand Junction 5ver and bought a second tandem axle 26 ft smaller camping TT. I am replacing the load range C tires on it now with a much stronger load range D tire just before the trip. I also carry a complete wheel bearing kit, and have installed a heavy duty lubable spring shackle kit. It also has Super Lube axles so I carry a grease gun to give the bearings a few pumps several times during the journey. ---- Have a great trip.
