I couldn't find an existing thread on this, so here it goes. I'm thinking about buying a 2021 GMC Sierra Elevation with the new(ish) 3.0L Duramax Diesel engine. I would like to put a Hawk shell (+furnace and stove ~950lbs) on it. I am hoping that someone might have this setup to give me some advice. 1) Can the Duramax and accompanying options handle a lighter Hawk? 2) The crew cab short box configuration has the highest payload capacity with the Duramax. Does anyone have experience with this rig? 3) If I go with the short box (70"), I don't want to leave the tailgate on. I'd be delighted if people would post pics of their Hawks mounted on a short box, especially on a Sierra. Thanks.