71 roadrunner and 71 satellite serial number stampings

just looking for some insight on something that i observed on these two cars that i own. the satellite that i recently purchased has the serial number stamped in the radiator support and the left top cowl area.the roadrunner is not stamped in these areas, and i have not been able to find any chassis stampings. i have owned the roadrunner since 1975, so i doubt that someone altered the numbers before i purchased the car. i also have the original window sticker for the roadrunner, and it shows a final assembly point of hamtramck but the 7th digit is R,indicating the windsor plant.the satellite has a 7th digit of E, indicating the los angeles plant. did different plants stamp in different areas? is it possible that some cars did not get stamped at all?

Different plants may have seperate areas were they placed the VIN #'s. My 71 has the vin# on the rad support and on the cowl top which was hidden by the hood to cowl seal. I also have the original window sticker that states the car was a Hamtramck vehicle that was built in Windsor.

I believe all 71 Plymouth Bs should have the radiator support stamped. As for the cowl, I've seen other cars that were not stamped there (my early built LA road runner included).
Your R coded car was built in Winsor. LA, Winsor, and St. Louis were the only three plants building 2dr Plymouth Bs for the 71 model year.

I work in a Mopar car plant and believe me if the pin stamp machine breaks down they are not going to stop building cars. They may stamp the numbers by hand or skip them. Talking to guys that worked back in those days they would have skipped them.

Windsor built cars were invoiced out of the main office at Hamtramck, so the window sticker & advance dealer shipping notice for Windsor cars will say Hamtramck assembly on them.

This is true for at least 1970 & 1971 model year cars, maybe others?

My old 71 GTX (RS23U1G100327)had the rad support stamping, but no cowl stamping . I always figured it was due to being such an early built car .


Greg

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