I got the contact information on Stovebolt.com and contacted GM for the referenced restoration information. I received it 3-4 weeks later. I found it very informative. The package includes many little known facts about the referenced vehicle. I got mine for a '66, C-10. Be prepared to provide your personal information and the VIN of your specific vehicle. I think they do this to keep people from requesting info packs for vehicles they do not own. Best of luck and keep on truckin, Stovebolt style.