2vettes2go said:
the official sn sequence is 510000.
Uh, not true. The 'sequence number' is the last 5, positions 13-17 . (You don't have enough zeros after your '5,1' in the above example. There should be 5.). The "5" in position 11 is the Assembly Plant, Bowling Green KY. The "1" in position 12 is a little more difficult to explain, and understand.
IF there is only ONE carline produced at that particular assembly plant in that model year, there will be a "1" in this position. If other carlines are produced, there will be a different number, but it is almost always
not the next increment, like "2". Here's why: If the last-5 of the sequential get to 99,999 then the "1" will increment to "2"00000 which would be interpreted as the 100,000 vehicle in the sequence for
that particular carline. As an FYI, the Cadillac XLR which was also produced in Bowling Green on a separate assembly line (NOT interspersed with Corvettes) has a "6" in the 12th position as its carline designator.
While there are other positions in the VIN that give specific information to identify certain attributes of the particular VIN such as make, country of origin, engine, body type, etc; the GM system uses the last 8 of the VIN to identify ONE specific car. The first 9 positions are not needed. Position 10= year model. (Narrows it down quick doesn't it?) Position 11 = Assembly Plant. Position 12 = Carline in that plant. Position 13-17, the unique 5 digit sequence number of that carline, built in that plant, in that model year.
So there you go. The "sequence number" is the last 5 of the VIN. Not the last 7. And any individual car can be identified by the last 8 of its VIN.
Federal Standards stipulate that there can only be ONE March 1st during a Model Year production run. The 1984 Corvette was released for Retail Sale on March 15, 1983 in California, and April 1st, 1983 for the rest of the country. The 1984 Model was produced until July 1984. So there was only ONE "March 1st" in the model year, and it met Fed Regs. It is true 1983 Corvettes were produced, and VIN'd as such, however NO 1983 Corvettes were released for Retail sale. The one surviving 1983 Corvette is on display at the NCM. It is white in color, and has the never-released 15" "base wheels".
|UPDATED|11/12/2013 12:58:18 AM (AZT)|/UPDATED|