has any one ever converted a 2wd frame to 4wd, it sure looks like it would be relatively easy, I have all the parts needed off of a 4wd frame. my 2wd d350 crew cab long bed would be more useable as a 4 wd. the holes for the front mounts for the front springs are already there so that would position the front axle, would just have to drill the holes for the front spring shackle bracket.