I phoned 1-800-222-1020, (Chevrolet Motor Division) and ordered my FREE Restoration Packet. All they wanted to know was year of my vehicle, VIN # (I guess to verify year), and name and address to send the packet. I got a TON of free information on my '56 3100 (this is infromation taken from assembly plant details), as well as a booklet that listed a large number of parts suppliers and publications. (Did I mention it was FREE?) Highly recommend this packet.