That is one way to go about it. When I was thinking of doing my truck all over again, I wanted to start from the frame up. I thought about cutting and welding the mounts 3" higher. But never got to it.
Use 2" heavy duty steal spacers on the bed portion of the truck, just weld it together. Then if you think you can do it , cut and reweld 2" higher the four cab mounts. THen I would run 2" steal spacers (welded like the rear) on the front 2 mounts. This will stiffen the up the front end (winch area, bumpers, etc.) and shouldn't allow too much rattle into the cab.
I'm running 3" steel square (thick) tubing all the way across the frame 4 of them total, for the bed side and this is what I call a sub-frame. Good Luck! :up: :up:
