1970 verification
Final production unit for March was 7977... Your car was built 50 units after that which falls into the very next day of production (April 1) based upon average daily assembly runs. If your tag reads C31, it places it in line with final assembly being a day or two later (which is typical). I can also tell you that from survey information, I have four cars built after yours, also with C31 trim tag dates so a March tag with an April final assembly looks to be correct for your car.
The engine assembly date falls three weeks prior to vehicle assembly which is also pretty typical.
As far as time sequencing goes, your car looks OK.
Regards,
Stan Falenski
Final production unit for March was 7977... Your car was built 50 units after that which falls into the very next day of production (April 1) based upon average daily assembly runs. If your tag reads C31, it places it in line with final assembly being a day or two later (which is typical). I can also tell you that from survey information, I have four cars built after yours, also with C31 trim tag dates so a March tag with an April final assembly looks to be correct for your car.
The engine assembly date falls three weeks prior to vehicle assembly which is also pretty typical.
As far as time sequencing goes, your car looks OK.
Regards,
Stan Falenski
Last edited by thelal1; Jan 22, 2016 at 10:25 AM.
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If the plant's fiscal year began on April 1, I could see where someone in management would have wanted units counted in March in order to meet production goals for the year that's ending. Gotta maximize that production bonus!
GM as a corporation may have operated on a fiscal year, but production was based on model year. The 70 model year began the first week of January, 1970 due to the strike the previous year.
Keep in mind at the time the car passed the station on the assembly line where the trim tag was attached, the car was not complete and would have required another working day, possibly a day and a half to have been completed. St. Louis considered cars complete the day the window sticker and car shipper were prepared and the car driven off the line and out to the transport lot.
If available for this car, an NCRS Shipping Data Report would confirm the date GM considered the car to be finished.
My somewhat WAG: Trim tag attached Monday, March 30, speculating the zero could be mistaken for a 2. Tuesday, March 31, car remains on the assembly line. Last car completed in March was #7977. Wednesday, April 1, #8027 is completed.
Last edited by Easy Mike; Jan 24, 2016 at 10:53 AM.
Last edited by 7T1vette; Jan 25, 2016 at 07:35 AM.
Last edited by Easy Mike; Jan 25, 2016 at 07:53 AM.
But...
There was a strike in 1970. I am away from my reference material, but I think it was a teamsters strike that lasted 3 weeks to a month where the production line was stopped or extremely slowed.
only 337 cars were built in April 1970, so don't know when production stopped and when it was restarted..perhaps mid march to mid april, or early april to late april.. Don't know..Somebody clarify?
what is on the trim tags during this time frame is iffy....
Many of the cars during these dates have extended date ranges between casting and stamping and as a result, these cars have that little 'excuse' for being deviant.
Last edited by joewill; Jan 25, 2016 at 09:41 AM.
The trim tag date always precedes the final assembly date by a day or two (in most cases)... This car isn't any different.
There was no GM/plant strike during the 1970 model year, but there was a teamster's strike in the April 1970 time frame.
Regards,
Stan
Looks like the 70 in question squeaked by just before the strike.



















