The fluid you want for a 2500/3500 is BW44-44 fluid. It’s red and has the part number 68089195AA.
BW numbering isn’t the most straight forward.
I know I'm frustrating you, but the label on my bottle (part number 68049954, post #37 above) says it contains fluid to be used for a BW 44-44 newer than 2016, which includes my 2017.
I'm just trying to square this label with the TechConnect recommendation; again I apologize...