found some interesting markings

69redrunner · Jul 17, 2012

Took the back seat out to chase down a 1/4 window problem and saw these markings. I assume they are factory inspection or code marks of some kind.
Looks like an "81" on the left rear wheelhouse and "23-23-3-H" on the leading edge of the package tray area.

Anybody know what they mean or seen anything like it?

roadrunnerman · Jul 17, 2012

not sure what they mean.My RR has a 2 on the left rear wheel well.

69Coronetrt · Jul 17, 2012

69redrunner said:
Anybody know what they mean or seen anything like it?

Yes. Was this car built at the St. Louis plant?

roadrunnerman · Jul 17, 2012

69Coronetrt said:
Yes. Was this car built at the St. Louis plant?

i know mine was.

69Coronetrt · Jul 17, 2012

roadrunnerman said:
i know mine was.

Have you checked for numbers on yours in the same location?

My 69 STL built car has them.

roadrunnerman · Jul 17, 2012

my "2" is located in the same place as his "81" is.I haven't noticed lately if i have anything on the firewall.

YY1 · Jul 18, 2012

I have 10-30-73 on the underside of the hood on my 73 Sat (happy halloween?), and 7-7-7 in what appears to be welding rod on the trans tunnel of my 66 Coronet. Both StL cars.

69redrunner · Jul 18, 2012

69Coronetrt said:
Yes. Was this car built at the St. Louis plant?

Not sure where it was assembled. How does one find that out?

69Coronetrt · Jul 18, 2012

69redrunner said:
Not sure where it was assembled. How does one find that out?

I'll assume we are talking about a 68-70 Road Runner.

VIN will read RM2*#@()123456

*= numeral 1, 3 or 7
#= H, R or V
@= year of car 8, 9 or 0
() = A for Lynch Road Plant, E for LA plant, or G for St. Louis plant
1223456= six digit number

So a 69 383 HT Road Runnder built at the St. Louis plant would read: RM23H9G123456

tpodwdog · Jul 18, 2012

my 1970 Road Runner has markings also. i asked my buddy about them and this is what he told me. there was a guy at the factory that used to send messages to another buddy further down the assembly line using some kinda code. i cant remember his name but it was mentioned in a Mopar magazine. i actually read the article. the dudes name escapes me but i can find out!

kev · Jul 19, 2012

My '70 from St. Louis...

69redrunner · Jul 19, 2012

Yes, vin code "G"

69redrunner · Jul 19, 2012

tpodwdog said:
my 1970 Road Runner has markings also. i asked my buddy about them and this is what he told me. there was a guy at the factory that used to send messages to another buddy further down the assembly line using some kinda code. i cant remember his name but it was mentioned in a Mopar magazine. i actually read the article. the dudes name escapes me but i can find out!

That's clever! Maybe they would line up where they would meet for drinks after work!

tpodwdog · Jul 19, 2012

69redrunner said:
That's clever! Maybe they would line up where they would meet for drinks after work!

sup Red....yeah i think that was the idea. it was an interesting article and damn if i can remember that dudes name, he became somewhat famous in the mopar world. the article was....."_________________ strikes again"

the blank up there is what the dudes name is ....but thats the article name in a mopar magazine.

Roadbird · Jul 19, 2012

Wow. And mine is a St. Louis also.

idrivemopar · Aug 3, 2012

Lets add some more to the mystery. I have seen similar markings on the Ralley gauge cluster and bezel, 81 on both, and 45 on another spare that i have, but no markings on the body of my 73 Roadrunner also from the St. Louis plant. Maybe he changed lines later on! hahahahaha

69Coronetrt · Aug 3, 2012

idrivemopar said:
Lets add some more to the mystery. I have seen similar markings on the Ralley gauge cluster and bezel, 81 on both, and 45 on another spare that i have, but no markings on the body of my 73 Roadrunner also from the St. Louis plant. Maybe he changed lines later on! hahahahaha

Probably not a mystery at all but the assembly number for that particular combination of dash. Different combinations of what went on that specific assembly would have different assembly numbers.

rev.ronnie · Aug 20, 2012

A guy named "Rock" was famous for signing all the hemi cars that went past him othe line.

shovelluv · Nov 22, 2019

Out of a 69 rr St. Louis also.

Islandkent · Nov 22, 2019

Ok I'll join in the fun and games. 70 Charger built in St Louis.

found some interesting markings

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