Did you have the interior out of the car? Behind the rear seat is the most obvious place to look but it can be found behind the glove box, under the carpet or in the front seats.

Purchased as a bondoed up partially gutted shell circa 1990.
There was not much of an interior to speak of, or carpet, or glovebox cardboard.

It did have the black dash+pads still mostly intact, and did have the silver windlace and black headliner,
But that was about it.

I’ve had almost every piece of metal off the car, please believe me when I say there’s no build sheet.

I’m not freaked out about that, it’s somewhat rare but nothing people go crazy for, one of
4000-something 440 4 speeds and had few options otherwise.
Power steering,
AM radio and hood stripes was about it. No air grabber, no console, no ac,
Manual 11” drum brakes. Very basic kind of a car.

I think that would be 4002 ?

I have and old friend that mounted tires and wheels on the line ,it was his first job. He said the tires were mounted upstaires using a broadcast sheet for color size and type and dropped down to his location to put on the car. He also said if they lost count or what ever after a good lunch in the parking lot you mounted what ever came down there was no stopping the line for mistakes, it happened all the time. The quality people at the end of the line would correct mistakes which would account fot date codes not matching perfectly. I know that doesn't explain the trunk lid markings or when the spare went in but I'm about due to call him and see if he's still kickin maybe I can get an answer.

I am confident the letters in discussion are sidewall colors. There are 3 designations that show up across the 1969 LR production:

X = Continue reading the thread, multiple epiphanies have occurred as this thread evolved - Edit 1/25/22
W = White Wall
R or RED = Red Wall

And the attached one oddity which is F70 B. Further discussion and discovery is below, please read on.

D

1969 Lynch Rd. is all B-body (non-Charger)
so, the available "performance" tires were:

F70-14 red (Goodyear SPEEDWAY or Firestone WIDE OVAL) - "F70 R" makes sense
F70-14 white (Goodyear SPEEDWAY or Firestone WIDE OVAL) - "F70 W" makes sense
F70-14 red POLYGLAS - "F70 X" is the F70-14 red POLYGLAS as the OP's car is a GTX & the RWL tire was not available
F70-14 black w/RWL POLYGLAS (spring special Road Runner & Super Bee ONLY) - "F70 B" is the F70-14 black w/RWL POLYGLAS - is the car a "spring special" Super Bee?

F70-15 red POLYGLAS - "F70x15 R" makes sense
F70-15 white POLYGLAS - "F70x15 W" makes sense

G70-15 red POLYGLAS (A12 ONLY) - "G70x15 R" makes sense

thoughts? any broadcast sheet or window sticker VS. trunk lid confirmations/comparisons?

A search of my Lynch Road data turned up the following for broadcast sheet/window sticker comparison to the trunk marking:

VIN BS/WS MARKING

214177 T82 F70 W
279720 T82 70 W
220739 T83 RED F70
188062 T85 RED F70
166637 U64 F70 W
194789 U65 RED F70X15
253197 U65 70 X
256700 U65 F70 X

Looking at the T82 and U65 codes, you can see the different markings. There was obviously not a consistent process for doing this mark. Many of the A12 cars have a 70 X designation along with other "RED" designations. Attached is the 69 tire code for easy access.

D

Darrin,
Could that "B" possibly been for black side wall? As a kid in a tire shop, many would state turn the white walls in. Just crossed my mind when looking at your findings. Great work by the way, as usual.

That is the only marking I have with the "B" so I am not sure a "Black wall" was even specified. With that said I have none with a F70 R or 70 R so I doubt it is a badly written R. I only have 54 markings tied to VINs and most are repeatable. Below is the only paperwork I have on the "B" marking in the picture above. Following up on Dan's response, you have to wonder what "Special Package" is?

Perhaps others will chime in.

D

Being that's a dealership invoice & not factory, I'm thinking "Special Package" probably refers to White Hat Special/Spring Special.
No mention of vinyl top but Spring Special Plymouths were available with or without that.
Note how late that happened; the '70s were likely showing up on the lot.
As for the X = black sidewalls, I don't recall any BSW F70s or G70s.
For that matter, has it been established that the letters were scribbled on the lids at the same time as the tire size ?
Could they have been more like an "OK" (inspection) mark ?
Mine have looked "same time - same guy" but that's been an assumption of mine.

Instantly turned into a greatly improved thread

Darrin I was hoping you would chime in. Hope to run some other restoration related questions by you in the near future.

Do you know if any of the U65 coded cars on the above list came with body colored wheels (other than black), just to rule out that any of the trunk lid markings refer to wheel color?

The grease pen writing on the lid is to quickly ID what tire goes on the trunk without looking at the broadcast sheet.
The wheels were already on the car with no caps when the spare goes in the trunk, so they can see what wheel needs to be on there.
As we know dog dish gets body color wheels, full covers get black wheels.
So there is no reason to specify the wheel color on the trunk lid.


All we have is 3 different marks on trunk lids is R W and X.
They have 17 exterior colors.
What would the trunk marking be for a green, tan, or blue car?
Then among these colors there are 4 greens, 3 tans, 3 blues, etc

Ever seen a yellow, orange or butterscotch color code on a trunk lid?
Nope thats not what it’s for.

But what about the "X" marking ?

Blackwall ?

Most if not all of these photos are most likely Lynch Road assembled car trunk lids, make of it what you think the "X" means, times as in multiplication, by as in 70 by 15", black as in black sidewall or black wheel color OR the start of an assembly worker playing Tic, Tac, Toe and no one else wanting to play?

All right, I think I am figuring out the pieces to this puzzle thanks to the subtle push from Dan P. Let's go back to the WM21H9A311602 car with the "B" marking I posted above. The dealer invoice indicates a "Special Package" which I think we can safely assume is the "Scat Pak" package, see below. The tag for this car does not indicate a vinyl roof, so we deduce an A40 code exists on the build sheet.

One of the tire options available is the "F70 x 14 Belted BSW with Raised White Lettering (T87)". It sure smells like F70 B belongs to the T87 code. I am off to the broadcast sheet library to search out the T87 code....

D

EDIT: The tag for this car also has the V21 code which was only available with the A39/A40 package. Scat Pak package confirmed....

I only have the broadcast sheet data on the 256700 car, the other was a window sticker. See below. The wheel color is designated as T5 on line 4 and a W25 (stamped steel wheel) option code is shown on line 10. I think we can confidently say the 4 markings (X, W, R, and B) are indicative of the tire sidewall and not the color of the rim.

D

See my previous replies above.

D

So the "X" means the A12's with "70 X" are G70 black sidewall tires?

(My Y4 A12 RM21 Road Runner's trunk lid with 70 X )