GVWR may be 7500lbs, but dry weight is listed as 4678 and CCC of 2822! (Sounds like they are borrowing a frame and axles from a heavier trailer). That is A LOT of CCC, which you will probably not come close to using. Load range C in that size are typically 1820lbs each for 7280lbs (the rest of the GVWR is assumed to be on the tongue). Unless you carry around a rock garden like Lucy, you will not come close to max for those load range C tires. Also, most of the equipment on Arctic Fox is standard and is included in that dry weight, not many options. So even if you manage to load up over 1800lbs of options, water, batteries, propane and stuff, at 6500lbs and 13% tongue weight, the trailer tires will see 5655lbs or 1414lbs each, only around 78% of their rated capacity. Having a good margin of safety is one of the best ways to increase reliability. In general I would not worry about the load carrying capacity of these tires on this trailer. How they handle road conditions up there, if they are better or worse than other places, I can't speak to. I do know the 99 here in SoCal is just about 3rd world in the right lane :) I just replaced my original load C tires that were 8-9 year old. Replaced with the same.
