From the info on the 29-54 Master Parts Catalog it looks like the pickup running boards should be the same as the 115" WB 1/2 ton panel trucks. The AN and BN models I highlighted in the attached are the model designations for 41 3/4 ton panel and '42 3/4 ton panels, which would have a longer wheelbase than your truck.
Hope that helps.
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.
