Copies of Chevrolet steering column diagrams are found in Chevrolet factory service manuals. Chevrolet hosts these repair manuals online through Helm Incorporated, a company that provides factory service manuals for several auto manufacturers, including General Motors, American Honda and the Ford Motor Company.
These manuals are available in PDF format, which allows for easy downloading and printing. Third-party repair manuals that include Chevrolet steering column diagrams are also available through Haynes and Chilton Auto Repair. These are not official Chevrolet manuals, but they come from established and respected auto repair companies. These sites can also be searched based on the year, make and model of the vehicle.