What do I need to tow 5th wheel with RAM 2500 Megacab?

I "have" a slider for my Mega, and I've never used it for my Monty. Can go almost to 90 degrees if need be (which is more than enough). My Monty came with a MorRyde pin box. I have used the slider when I moved an older 5er, and needed it. But I'm in the transportation business and have used it only to move older 5ers, never the newer ones with cut corners/extended pin boxes.