David,

I am not sure if the brackets are the same on civilian trucks as on military, but here are some reference images. These were from a mid-1942 military G506. I know the pans are slightly different to accommodate a military exclusive steering box. The attachment brackets may be common to the two applications. At any rate, they would be relatively easy to fabricate.

[img]http://www.surfacezero.com/g503/data/3176/IMG_49092.JPG[/img]

[img]http://www.surfacezero.com/g503/data/3176/IMG_49112.JPG[/img]

Paul


1941 Chevy 1 1/2-ton WW2 4x4 dump truck
In the Stovebolt Gallery
Lots more pictures