Date of Manufacture
#461
#466
#467
#468
#469
Many GM vehicles have the same last 6. It's much easier to sort them out when you have 8. Apparently the first two is 6S for the 2006 and 7S for the 2007. Also, the GM invoice look-up applications requires 17 or the last 8 of the VIN to produce the invoice. If it's a preorder sold unit (meaning someone went to a dealership and had the vehicle order just for them), I won't be able to produce an invoice if it was not ordered from my dealership. My dealership does not give me that access level. With the last 8 of the VIN, I can basically pull any invoice of any GM vehicle produced for the United States of America, excluding preordered unit.