I'm going to be buying new tires I've had the stock size 245/65/17 now. I recently purchased a small travel trailer. Geo Pro G14FK. It weighs around 3000 lbs fully loaded. I've only towed it a couple of times for test runs. Envoy pulls it fine but I keep it in 3rd as has been recommended. It tachs out around 2500 rpm at 63-65 mph. Would it be worth adding a little width and height to the new tires? I don't want to modify or put in spacers. I've read that the 265/65/17 is about the largest tire I can run in stock configuration. Only 1/2 inch taller. Thanks for any input. Cam (c good)