Cummins12V98,
I purchased a MaxBrake after reading here on the TDR. I think the MaxBrake should work on any truck with a hydraulic brake system. Mine has a sensor that plumbs in at the brake master cylinder; that sensor detects the line pressure and allows current flow to the trailer brakes. More pressure, more current, more trailer braking, instantly.
Or is your question the specific fitting to plumb into the master cylinder? I am sure some here know if any changes there. I would think you could always find some plumbing to make it work.