I dont know if this will help or not...Howard Knapp was a flat bed dump truck in its former life...

I had to add these to the back frame rails to get the 9 foot pickup box to fit...2x4 rectangular steel tubing left over from a former project...

rear view

good luck...

MikeC


Last edited by mikec4193; 08/22/2016 4:17 PM.
1951 Chevy 3800 1-Ton
Howard Knapp
In the Stovebolt Gallery
1948 Chevy 1-Ton (sold Nov 2017)
1953 Chevy 1-Ton (sold 10/1/2016)