Great original FACTORY info about Chevy trucks is available as a free download (or you can order for $50 if you want). I found a 185 page factory publication with great info about the complete line of 65 trucks that I couldn't find anywhere else.
Here's the link:
http://www.gmheritagecenter.com/gm-heritage-archive/vehicle-information-kits.html

Look for the Chevy Truck Section and click SHOW. Select the correct year for your truck. The download is in pdf format and can be saved to your computer for future reference.

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