Here's a photo that shows the middle and rear running board brackets. The middle brackets have a small hole just below the lowest frame holes. The rear brackets have a larger oval hole between the frame holes. You'll need to zoom the photo up a bit to see them well. The rear brackets also angle toward the front of the truck a bit, which tells you which is right or left. In the Factory Assembly Manual Section 2, Sheet 2.00 shows a top view of the frame with brackets.
Kevin 1951 Chevy 3100 work truck Follow this saga in Project Journal Photos 1929 Ford pickup restored from the ground up. | 1929 Ford Special Coupe (First car) Busting rust since the mid-60's If you're smart enough to take it apart, you darn well better be smart enough to put it back together.