No wear issues on the 15 after 6 months...but it was totaled this past December. Have the kit again, and plan on installing on the 17. Schedule is crazy right now, so not sure when. MUST get an GOOD alignment after the install. No lines need to be extended or ever seemed stretched when I looked at them. Width of the tire makes more difference in rubbing than height, at least on mine that had the electric boards. Had 33's, but the site says 35's will fit. That is only a skinny 35 if at all on the Ex's with the Electric boards. I tried a 35x12.5 and it wasn't even close to fitting. Went with a 33 that was less than 11 wide, and it was good. If you have the regular boards, you can trim and probably fit a 35x12.5.