It's been posted here before, but 275's work fine on the stock Limited rims. I put 275/55-20 Bridgestone Dueller Revo's on my stock Limited rims. I had these tires on my Gen4 and they did great in the snow. Ride nice, no rubbing and much better looking than the wagon wheels that came stock on the Limited.
How have they held up? We just pu a new Limited and while searching am finding that off road tire choice is limited due to the 20 X 7 rims. Your tires are rated at 7.5 inch for min width. Any problems?