So ive tried searching and reading but all the posts ive found on line are old and seem outdated. I have a 2007 2500hd classic silvy cclb 6.0, 4l80 4x4. Getting ready to move back to az in the next year and my tires are gonna need replaced by then. I currently have 16 inch steelies and lt265/75/16 falken ats. Looking at bumping up to 285s and a level kit. Wondering if 17s or 20s would be better for towing in terms of stability. I know they have load range e 20s now but looking for real world feedback from those who have bumped up in wheel size. Also what tires are you seeing best mpg and tread life out of?