sequential unit numbers

how did this work?

this seems to be complicated/misunderstood/confusing

im not even sure how to ask/word the questions, so im just gonna go for it, and hope for the best haha

it kinda gets repetitive also.,
so its probab;ly best to quit reading what ive typed once you get the idea of what im asking here, lol.



is a built unit(vehicle) number the number of the unit built of that particular model of a plant?

or all combined models/lines ?

or what ?

for example:

my 82 T/A is unit number 567676 and was built at Van Nuys

on just the firebird line?
or were bird and maro seq unit number series combined ?

IE: is it the 67676th FIREBIRD built at Van Nuys for 82?
or is it the 67676th unit(non-specific model) built ?


or what ?

so far to me it seems that all models/units were combined/in series and so therefore no 67676th van nuys 1982 camaro was built, since the 67676th unit number is my trans am

or was there a 67676th van nuys 82 camaro built also ?



how did this work ?

if the seq unit number on every vin code of a particular year and plant is really the seq unit number of all production of a plant then it only makes sense that my 82 t/a would be the only 67676th unit that came out of van nuys in 82

otherwise how could it properly be called a sequential unit number ? it would then actually need to be called sequential firebird unit number

the vin code does specifically distinguish it as being a firebird,

so technically each model line of a plant can be built on its own sequential unit number order and therefore share the same seq unit number of other models/lines of a plant and other plants and so forth

so then there could be like 25 other GM car models built in 82 that are the 67676th one

but i see that my 82 Z28 is number 96631 of Van Nuys and was built 4 weeks BEFORE my 82 T/A that is number 40,000 units LOWER than the z-28

the Z-28 built 08A
the T/A built 08E

these cars possibly might have sene each other at the plant if the Z-28 was able to stick around the plant parking til the end of august, now they both see each other in my yard here in IL, reunited in a way,

so what the heck is going on here ?? 40k unit difference in 4 weeks

it seems that a plant sequential unit number only applies to one specific model/ine and not to the plants actual total production(all units/models)



i hope it is clear what im asking/trying to find out

i dont know how else to word/ask this


thanks

 

not too sure how 1982 worked exactly, from what I can tell, Firebirds started at 500001 for both norwood and van nuys, not sure about camaros.

Other years from 86+ All Firebirds start with 200001 & up, and Camaros start with 100001 & up... It is in fact the same as the 3rd digit for most years. In 1985 Van Nuys Friebrids went to 654874, And I know that there was not 554874 Firebirds made in that one year, it never happened. Likewise in 1985 the Camaro line started at 100001 and ended at 503767, and in 1986 Camaros start at 100001 and end at 203446 Bot h at Van Nuys CA.

With that stated I believe that all models start at their respecitve numbers IE Chevrolet's all start at 100001 thru 199999 and then start at a new number, for example 500001 and go from there. Likewise I think all Firebirds started at 200001 and go through 299999 and then go to a new number.

I do know for a FACT that the first Firebird in 1992 was 1G2FS23F0NL200001, it was a Yellow Formula 1LE, and it has power windows, and is still owned by GM.

 

I can answer this on the Camaro side because I wondered the exact thing some years ago. 1982-1987 Norwood was always
N1XXXXX. The exception was 1984. After EN199999 the next Camaro was EN200000 and continued to EN200729. '84 was the only year Norwood produced over 100,000 third-gen Camaros.

Van Nuys was always L1XXXXX and L2XXXXX. As mentioned before the exception was 1985. The first 10,000 Camaros out of Van Nuys had VIN's FL1XXXXX. After 10,000 the 12th digit in the VIN became a number four. So now we have FL410001-FL499999.
The next Camaro had VIN FL500000 and continued to FL503767.
Total Camaros out of Van Nuys for 1985 was 103,767. Why is this??? P.haze 92 and I are still trying to figure this out, and I give him credit for pointing this out to me.

 

This is a good question. According to Recall Notice 82-C-04 dated 8/82, the firebirds involved where:

Plant---------Beginning VIN----------Up to and including
Van Nuys-----SOP---------------------CL555308
Norwood------SOP---------------------CN526052

This means each plant would have had to start at 500001, which puts total production at about 81360 units in the summer of ‘82. This is about right assuming it would have take a month or two to discover, correct and issues the recall.

It appears each plant began at 500001 for the firebird.

 

hmm very interesting stuff,

whats this recall issue stuff about? are there any threads or anything about this ? there was a recall ? what happened ?

im not sure that i am/have absorbed the meaning of some of this, but
apparently all of the 82 birds' sequential unit numbers start with 5 then..

and apparently they didnt change the 12th digit for them at all in Van Nuys during the 82 run.. hmm..

beings that mine was built aug 30 or 31(towards end of the run) and is number 567676

so are we saying that all the birds started with 12 digit of 5 ?
both plants ??

hmm

and the the camaro, its 12th digit is 1, even with being the 96631th one

apparently they did not change the digit on the camaro line either..(except for 84 or whatever)

how did this 12th digit thing work ?

this is wierd..

i never really realized they might have ever changed it during production runs,

but in 82 apparently they didnt change it

which would still mean that both lines of cars had their own separate sequential unit numbers as they came off the lines,

hmm....

i speculate anyways,

thanks