[cblock]

I think the 4x4 frame is the easiest way to go, but finding a 4x4 frame is probably as difficult as finding a 2wd short bed frame. The most doable option is going with a front axle from a square body, I believe you would need to move the leafspring perches on the axle being that the 67-72 frames are narrower. Whatever you decide good luck with your project.