Yeah, they are nice. I would buy 3 sets of them for my rigs if they were available.
I'm not as worried as I used to be with less travel. But I used to travel for work frequently and my truck might sit at the airport for several weeks per year.
I had a locking cap on my previous 2500HD, but DEF cap was up under hood so no worry. The 24 2500HD has the DEF and fuel caps together, but opposite position of the 1500. The caps are traditional screw in style, so I could get a regular lock cap for fuel. Would rather have a nice set like BEM.
I am not on Facebook, so it won't allow me to look it up. Might have to get my wife to get some info. I did see someone post on Duramax Forum that they got one for their 2500HD.