Tank sticker

[Rocco S.]

Re: Job Numbers and VINs in the Assembly Process

My March 30, 1967 Tank Sticker is marked "164" and the VIN ends in "166". Interesting it looks like on the bottom left of the tank sticker is handwrittrn "437" and "L79". My car is a coupe with L79.

Tank Sticker 1.jpg

[Larry M.]

Re: Job Numbers and VINs in the Assembly Process

Rocco:

My 67 car was built on March 28, 1967. VIN is 14845..... and handwritten numbers on the tank sticker are 343. 845-500 = 345. So you see my car has the two numbers difference as well (345-343 = 2). This is typical for March/April 67 built cars.

Larry

[Larry M.]

Re: Job Numbers and VINs in the Assembly Process

Yes sir indeed, Larry

Mine was in the last 8 or 9 production days of the '67 (and midyear) build.

My Body Build Date is K28 (June 28th 1967).

I don't have a shipping report, but I'm guessing it rolled off the line that same day - or maybe June 29th(?)

What intel do you have regarding that period at St. Louis?
And do you have an explanation regarding how the paired sequences were disrupted?

Mark:

The VIN (or VIN equivalent) and tank sticker numbering differences normally were either 0-1-2. And normally this VIN (-) tanks sticker number was also a positive number. However during the last few weeks of production, this changed dramatically and there were differences of 4-5-6. Also the VIN (-) tank sticker numbers were negative........like yours: 971-500 = 471 for your VIN equivalent number, and 474 for tank sticker handwritten number. Then VIN (-) tank sticker number = a minus 3.

I have no insider knowledge or special formulas............only a lot of information regarding 67 VINs and what is written on their original tank sticker. After a while, things become obvious........and patterns emerge.

Not an exact science by any means.............more of a very useful approximation and verification tool.

Larry

[Leif A.]

Re: Job Numbers and VINs in the Assembly Process

My '67 VIN 20830 and...tank sticker 330.

[Larry M.]

Re: Job Numbers and VINs in the Assembly Process

Leif:

830-500 = 330. This 330 (VIN equivalent) - handwritten tank sticker number of 330 = zero. This is typical. As stated previously, typical differences were 0-1-2. They varied thru-out the year month to month.

In your case...........a perfect match...........(thumbs up). Congratulations!!!!!!!

Larry

EDIT: Your tank sticker DEFINITELY belongs with your car. . .

[Danny P.]

Re: Tank sticker

I've read on this forum that the written numbers on a tank sticker represent the last three of the VIN minus 500. These may seam like strange questions but why minus 500? Why not just write the VIN last 3? And what did they do on the first 500 cars, write a negative number? Also the first 500 of the next thousand and so on? Just curious.

My 67/L71 Vin.# is 112421 and my Tank Sticker pencil number is 419 both my copys are NCRS/GM Validated11 NCRS Validated Original Window Sticker.jpg11 NCRS Validated Original Tank copy.jpg

[Jack M.]

Re: Tank sticker

Reviewing some saved images of Tank Stickers, I calculated the 'difference' between the VIN and written number.
Since the images are NOT my vehicles, I'll simply post this listing for only 1967 Corvettes.
BTW- The list was compiled by Coupe, and then Convertible... some pretty interesting groupings:
Tank Sticker Evaluation-01.gif
Tank Sticker Evaluation-02.gif

[Mark F.]

Re: Tank sticker

Reviewing some saved images of Tank Stickers, I calculated the 'difference' between the VIN and written number. Since the images are NOT my vehicles, I'll simply post this listing for only 1967 Corvettes.
BTW- The list was compiled by Coupe, and then Convertible... some pretty interesting groupings:

Hi Jack,

Very interesting...I have a few questions:

1. Does your collection also have examples where the difference is 0 (IOW, Job# matches last 3 of VIN#)?
2. Where do the coupes end and convertibles begin in your Table?
3. Is your Table sorted lowest VIN to highest (within the coupe vs conv. groupings)?

thanks for sharing!

[Jack M.]

Re: Tank sticker

Hi Jack,

Very interesting...I have a few questions:

1. Does your collection also have examples where the difference is 0 (IOW, Job# matches last 3 of VIN#)?
2. Where do the coupes end and convertibles begin in your Table?
3. Is your Table sorted lowest VIN to highest (within the coupe vs conv. groupings)?

thanks for sharing!

Mark - I only have a very small group of Tank Sticker images... nothing definitive, just interesting.
In answer to your questions, we have the following:
1. No
2. Written = 2 ---and--- Difference = 4 (start of convertibles)
3. Yes

[Michael J.]

Re: Tank sticker

One more for your collection, this is for VIN 194377S110714.......one of my former ones.

[Harry S.]

• By law, cars had to have a VIN. Starting in the model year the VIN was number 1 and ended with the last car made, say 22000.
• Did the VIN numbers have to be assigned sequentially, no. A GM executive could have requested a specific VIN number, say 5000, so he could remember it. This happens today as someone with a 1967 with VIN 10000 could request a 2023 Z06 with VIN 10000. So, the VIN could go down the line out of sequence.

Job Number

• GM was looking for an easy way to communicate to the line worker about what options to put on a car. I guess they figured anywhere between 1 and 500 could be remembered the best for the time the car appeared in front of that particular line worker at that station. So, they crayoned the number on the doors, front engine side floorboard, etc. The specifically wrote Z06 in crayon on the transmission hump under the radio and behind the gas tank.

Conclusion

I do not believe there was any relationship between the numbers, just a mathematical coincidence. There was no GM master plan. As far as I know the Job number was assigned early in the build process and the VIN stamped much later.

[Michael J.]

Re: Tank sticker

Harry, my '63, '64s, '65, and '66 show no relationship between job number written on the lower body to the VIN, they are all several hundred off in random fashion. But the 2 '67s I have had either an exact match of the last 3 of the VIN to the tank sticker and lower body numbers, or are only 2 off. And Jack's chart for '67s tank sticker numbers show a distinct relationship. I guess my conclusion is something was different in '67 from the previous C2 years.

[Harry S.]

Re: Tank sticker

From a Restorer Article, the AOS line. How does Job Number P77 work with a VIN.

AO_Smith-05.jpg

[Michael J.]

Re: Tank sticker

What MY year bodies are those?

[Harry S.]

Re: Tank sticker

Here is the article.... Looks like 64 to me.