Duramax trucks that are going to see some seriously tough off-roading are going to need a suspension system that can handle rough terrain and aggressive trails. Kibbetech has a bunch of Duramax suspension upgrades that will make sure your tough GM 2500 or 3500 makes it home in one piece, no matter how hard you're pushing it. Kibbetech has heavy-duty billet upper control arms, coilover conversions, shackles, bump stops, and other heavy-duty suspension hardware that will have your aggressive truck ripping around off-road in practically no time at all.