Ok, here goes. This is the entire text off their website. I simply called the first 800 number and asked for a restoration kit. For one car I had a VIN and for one I didn't. The people were very helpful. Be nice to them and the return the kindness.
Lee
From the gm.com website ~
TELEPHONE US
If you have a question, comment, or problem with a product or service, let us know; we will be happy to serve you. The Customer Assistance Center is open from 8 a.m. to 8 p.m. Eastern time Monday through Friday.
When calling, please have the following information available:
Your name, address, and home and daytime telephone numbers
Your Vehicle Identification Number (VIN), which can be found on your registration
Dealership name and location
Vehicle delivery date and current mileage
Nature of your concern
Customer Assistance Center
Inside the U.S.:
1-800-222-1020
Service Manuals and Owner Publications
To purchase service manuals, service bulletins, owner manuals and other service literature for all current and many past model Chevy vehicles, call the appropriate toll-free number below.
Inside the U.S.:
1-800-551-4123
Service manuals contain diagnosis and repair information for all chassis and body systems. These manuals may also be useful for owners who wish to have a greater understanding of their vehicles, or for owners with the appropriate skill level or training to perform "professional do-it-yourself" service. Chevy service manuals for professional, qualified technicians are also available. In some cases these manuals refer to specialized tools, equipment and safety procedures necessary to service a vehicle.
MAIL US
Please mail your comments, questions or concerns to the Customer Assistance Center located nearest you.
From inside the U.S.: Chevrolet
P.O. Box 33170
Detroit, MI 48232-5170