02D production date

[dale_z28]

I'm interpreting the data on CRG as N607164 being the last February Camaro. If I'm correct, my car (N606932) would have been built on that last day, since it's a mere 232 away.
Anyway, that's huge for me, since now it appears my car AND my 3 kids were all born on the 28th day of the month - just different months!

[DeanZ10]

I had a Z11 vin of 610431. It was a 2D car.

Dean

[dale_z28]

I had a Z11 vin of 610431. It was a 2D car.

Dean

Hmmm. Maybe someone can shed some light on that. Sure it's not a 3D?
I see now that the Pace cars might have ran at the end of February, so possibly not included in the VIN numbers ending at 607164 as I thought I understood.
So now I'm wondering when my Z was built

[HustleRussell]

My car is also 02D. VIN N610048.

[bcmiller]

Read this

The list below is Chevrolet's documentation of the end-of-month VIN for the GM assembly plants.
* Due to several limitations the VINs in this list will not necessarily correlate exactly with either a specific calendar day or the build week on the cowl tag. The data for some months (especially May and June 68 at Norwood) deviate significantly from actual build dates, while other months correlate well.

The above was taken from the link below - 2nd paragraph.
http://www.camaros.org/geninfo.shtml#HowMany

[bcmiller]

You should be able to order your data from NCRS if you want to find out the shipping date.

https://www.chevymuscledocs.com/index.php

[jack92584]

I had a Z11 vin of 610431. It was a 2D car.

Dean

Hmmm. Maybe someone can shed some light on that. Sure it's not a 3D?
I see now that the Pace cars might have ran at the end of February, so possibly not included in the VIN numbers ending at 607164 as I thought I understood.
So now I'm wondering when my Z was built

Pretty sure I know the answer to this. There were no 3A cars. Trim tags went straight from 2D to 3B. All the cars from 607xxx to 614xxx that should have been tagged 3A were tagged as 2D.

[Mark]

Theres two things to consider when looking at the cowl tag date and the reported last GM VIN number.

1. The GM number is a snapshot in time, its the last car leaving the building at the end of the 2nd shift on the last calendar day of the month.  At that point in time there are still another 2 1/2 to 3 days or so of cars (2500 to 2700) on the line all the way back to the beginning of the Fisher side of the plant.  IF the last calendar day of the month also lined up with the change of build weeks (like its a Friday) then the very first car way back on the Fisher side of the plant that was little more than a firewall would also have an 02D (or whatever the build week was) on the tag.

2. Fisher scheduled build weeks while generally running from Monday to Friday (or Saturday), they did not line up with the actual calendar weeks.  For example if February of 69 ended on a Friday (it actually did) then there was at least 2500 more 02D tag cars on the line.  For every day before the last day of the month being on a Friday add another 912 cars with the same body tag date on it. 

I personally believe that the 02D tag did not get changed on Friday 2/28 like it should have, but instead stayed into the next week. There are lots of oddities as far as which calendar week corresponds to build weeks, with missing weeks, weeks that ran long as well as trying to fit holidays and extended work weeks into the calendar while taking into account that the factory could not build more than 4560 cars over a five day work week.  Haven't been able to fit all the weeks together yet.

[Revsitup]

n612961 for my 02d z/28

[norhardt]

 I have a 02 D Z 28   N610464 as well

[dale_z28]

I guess I should share why it's important to me to know the build date, even though I'm struggling with determining if it's worth $50 to know: My birthday is February 26, and all my kids were born on the 28th day of (different) months. So it's the "cool" factor, is all. I have the window sticker and know my car was delivered to Jim DeWar Chevrolet (New Albany, Indiana, if I remember correctly), so as far as I know, the only info I could obtain would show the ship (and most likely the build) date from Chevrolet. I'll probably do it someday, but until my car is done and sitting in my driveway, I've got better places for the money.
Thanks for all the responses, especially explaining the lack of 03A, that explains a lot!

[hgger69]

My X44 with N611150 is a 02D also....

[69Z28]

Theres two things to consider when looking at the cowl tag date and the reported last GM VIN number.

1. The GM number is a snapshot in time, its the last car leaving the building at the end of the 2nd shift on the last calendar day of the month.  At that point in time there are still another 2 1/2 to 3 days or so of cars (2500 to 2700) on the line all the way back to the beginning of the Fisher side of the plant.  IF the last calendar day of the month also lined up with the change of build weeks (like its a Friday) then the very first car way back on the Fisher side of the plant that was little more than a firewall would also have an 02D (or whatever the build week was) on the tag.

2. Fisher scheduled build weeks while generally running from Monday to Friday (or Saturday), they did not line up with the actual calendar weeks.  For example if February of 69 ended on a Friday (it actually did) then there was at least 2500 more 02D tag cars on the line.  For every day before the last day of the month being on a Friday add another 912 cars with the same body tag date on it. 

I personally believe that the 02D tag did not get changed on Friday 2/28 like it should have, but instead stayed into the next week. There are lots of oddities as far as which calendar week corresponds to build weeks, with missing weeks, weeks that ran long as well as trying to fit holidays and extended work weeks into the calendar while taking into account that the factory could not build more than 4560 cars over a five day work week.  Haven't been able to fit all the weeks together yet.

Wow!! Great explanation, thanks. Cleans up some questions I've had on how that really worked. I understand just a small bit about how line work of this massive scale really works and flows. I worked at Playtex for years and ran a tampon making machine with a ton of working parts (old converted cigarette machines) that was about 60 feet long so I got to see from start to finished product. One man,  consistently well over 100k tampons in an 8 hour shift from one machine, and there were 18 of those and if something locked up or when the machine crashed, as we called it, it was down from an hour to a few days on the outside, even that was a nightmare. Can't even imagine what it was like on the a car build line.

[69Z28-RS]

That's a helluva lot of tampons...     

[Mark]

You have to remember that the assembly line was over 2 or 3 miles long in these plants. So if you were a Fisher guy sticking cowl tags onto the firewall on a Friday the last one you attached at 1 minute to midnight (end of second shift) had a long way to travel before it rolled out the other end of the plant.  The guy that came in on Monday AM pulled the next days cowl tags with the new build week coded on them and started attaching them to the next firewall on the line.  Probably didn't happen exactly that way every week, as there were probably a few cars that didn't get on the line by the end of shift on Friday due to delays, or production stoppages during the week so there was probably a few of the previous weeks tags left for the first few cars on Monday but it would be a minimal number.  So that last 02D (in this case) tag hung on the firewall at 1 minute to midnight on the previous Friday still had 2 or 3 days or so of travel time thru the factory to reach the end of the line and out into the parking lot.   

Also the GM guy assigning VIN numbers was somewhere in the middle of the entire line, but the guy recording the last one made for the end of the month report was all the way at the end as the cars left the building on their way to the parking lot, or shipping point lot.  The official birth date of these cars  from the NCRS paperwork is when they were delivered to the parking lot and turned over to the shipper for delivery.