I have a solution for you to raise your trailer, but I don't think going through a complete suspension overhaul is cost effective and won't give you the greatest additional clearance. I'll also add that lifting your trailer by changing components will not void your warranty unless the installation of those parts is the cause of a malfunction that damages the coach and we've seen many customers add lift kits to their new trailers without issue.
Your best bet, assuming that you have double... view full answer...