tre5
+1y
I ran rubber fuel lines and used insulated hose clamps to secure them. No pictures, really just a no brainer. The crossmembers are not as tall as the frame, so I ran the lines over the top of them.
Why would you use 2X3? 2X4 fits just fine. I would run 2X4 .188 (3/16)... if it's available when you go to buy it, lol. There really isn't much of a rocker on these trucks, so you could just lower the body mounts on the frame the extra 1/2" or so to lay door. You may have to clearance the body a tad on the underside in some areas, but I would not run 2X3.