Hey everybody, I've been on this site (looking) for a long time. Trying to decide what pup we wanted, looking and reading some great stories and awesome tips and tricks.... So a few weeks ago we purchased a 2006 Jayco J Trax. We decided to go with the Trax because it was the cleanest used pup we'd seen and it didn't have any plumbing to deal with... Beside we've been tent camping (Glamping) for a long time and we have a potty, a stove/oven combo, and blackstone griddle so we didn't want any cooking or anything in the pup and the Jtrax was perfect for us.... But it as one downside for me and that's the tires 5.30x12... Does any know if I can go up to 13s without any mods?