I loved this idea from Killbillet.com. I had to record it. I couldn’t build a truck that I couldn’t use as a daily driver and work truck. A pretty oak bed was not for me. Take an s10 box cut out the bottom metal.

Add angle iron to hold up the floor until welded and weld it in to your step side.

http://www.killbillet.com/showthread.php?16296-1948-Chevy-5-window-on-an-s10-frame-(step-by-step)/page2

Glad I saved these images cause they disappeared from killbillet. Used without permission. Since this is mostly a reference for me guess it don’t matter.