Measured today and the spring hangers are the same width and distance front to back. Anyone done this and can comment on the ride? Since I'm doing a flatbed on mine I was just considering the swap for a little extra capacity but I don't want it to ride like a two-horse wagon. Don't really know if I'll need extra capacity, just wheels turning in my head.......

 

It would be a very wise Idea to do it. Especially sine the flat bed is going to weigh more than the pick up bed.
It will ride a lil rougher than the 5 leaf F150 springs but once you get the flat bed on it should equal out

 

Just seems like the thing to do. It's not going to be a commercial "working" truck but I did notice when I sat the flatbed on my parts truck, to get it off the trailer, it squatted a bit. Conversion will be much easier before I install the bed.