I’ve been looking around the web about this and found that over time a heavy tool box will cause issue with the box welds. At the same time I cannot find a correct part number or picture of the bracket. My tool box is very light and only has a few straps, blanket, paper towels and a collapsible fishing pole. If it weighs 75lbs it would be on the heavy side. I feel I’ve been cheated in a way. 50k$+ truck and it can’t handle 125lbs of constant weight on the box?!? I’m going to the dealership and will inquire in Friday this week. Could they just want to make more money?
Did you get the box reinforcement bracket that the owners manual says needs to be installed? I have a back rack that I want to install on mine. Called the dealer, didn’t know anything about it. Still waiting to hear back.