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how to read bumper code 9 17 M3

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hurlbird:
anyone know the application? selling as 67-68 bumper? thanks

JohnB:

--- Quote from: hurlbird on August 29, 2021, 07:56:18 PM ---anyone know the application? selling as 67-68 bumper? thanks

--- End quote ---

9 17 M3 = September 17, Monroe plant, 3 shift!

hurlbird:
that is where i arrived but what about the year? thank you!!!

Karguy:
Jeff, on that note I have a question please. Were the Monroe bumpers used on San Jose cars?

J_Speegle:

--- Quote from: hurlbird on August 30, 2021, 09:51:13 AM ---that is where i arrived but what about the year? thank you!!!

--- End quote ---

Sorry don't know where my head was - didn't focus as I should. Should have double checked my date coding article to make sure

Unlike other sheet metal pieces the year of the stamping is the last digit in the pattern. Month, day of month, stamping plant, year of stamping the Three above would suggest IMHO that the bumper was stamped in 1973, or 1983. The last digit being the shift is something we see in some other sheet metal date code patterns from other stamping plants and "shift" does not work out when you have numbers greater than "3"


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