The runniing boards are different between the smaller trucks with the short ones and the larger 1.5 or 2 ton trucks. They will work from the small trucls only the vertical part that meets the cab is not as tall as on the big truck ones.

•1951 GMC 250 in the Project Journals
•1948 Chevrolet 6400 - Detroit Diesel 4-53T - Roadranger 10 speed overdrive - 4 wheel disc brakes
•1952 Chevrolet 3800 pickup
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"First, get a clear notion of what you desire to accomplish, and then in all probability you will succeed in doing it..." -Henry Maudslay-