Anyone have a Northern Lite 10-2 on a flatbed?

I have a 10=2 NL on a '17 Ram 5500 with a Alum Line flat bed. I put boxes on both sides and with the storage in 4 side boxes in the bed I don't think my wife has enough "stuff". LOL Works great. We traveled from Ohio to Oregon last summer and had no issues what so ever. Like someone else said I had to put extensions on the dually brackets. Truck handles it really well.