I was told at the FROG rally the sides that were cracking only had square tubing around the slide cutouts in the sides. The replacement sides have one the length of the camper that runs above the slides. Like a header in a house. Our 2013 also got sides replaced. They did a good job and did other stuff while they had it including put slide out toppers on for free. If any of you have never been, the FROG rally is a really awesome deal. Great seminars and tours plus free repairs as a bonus.