We've been over and over and posted hundreds of pictures of the different markings, numbers, paint blobs, etc... found on Mopar 4 spd transmissions
BUT
Has anybody ever found and documented markings or code numbers or inspection marks on Mopar 727 or 904 Automatic transmissions?

please....due tell..........photos anyone????

Great question Alan, been meaning to ask that one myself !

I have some off a 66 Hemi Coronet that had 1700 original miles. We redid them during the restoration. I'll post some pictures this evening.

Here's some green paint on this used big block 727 warranty, service, over the counter, replacement, whatever you want to call it today, transmission.
It is under the crud where the tailsock meet the main body and been there since day one I assume.

No PK numbers on the pad

Other identifying marks = year 70 and the 12 month boxes

As promised but a week or so late. Here is a picture of the trans for a 66 Coronet WE21 car. The x and the 60 on the tailshaft housing were the only inked/painted on markings.

1970 383 Bee trans.

The color matching the speedo gear color could be exactly right. It makes sense to me. The Bee, I think, is suppose to be a 3.23 gear and is a 5500 mile car with F70-14's.


Looking at the YO catalog that would be a yellow gear. But if it turned out to be a 3.55 gear, then it is red.

My 71 GTX was a 3.23 gear, had a green stripe, but I don't know if it was F70-14 or a G70-14. Again, an F70 would have been a yellow gear, and a G70-14 isn't listed in the YO catalog.

I think you are on to something there Alan.
You better buy a lottery ticket this week.

Check out this stamping of a 68 727 tailshaft extension...Looks like a bust of someone... ...

Same 68 727 with some factory writing.. ..

Hello everybody. I worked at the transmission plant and seen most of the marks. The colors usually were shift color ,blue=dayshift,red=2nd ,green=midnight. The numbers on the tail look like count numbers taken at the end of the shift. The stamping on tail is a final test stamp. The tester maybe had a toolmaker make him the design. The other marks were usually o.k. inspection marks .The speedo marks could be i.d. for gear or production dept.shift i.d. Hope that helps.

65Mike, thats great info! Nice to hear it from the people that worked there.

went back for more pics on my friends 70-B and found this on the tailshaft.

enjoy.

Good pics everyone... ...Yes, it's great to hear from guys that were actually there and get the real scoup on what the markings are...Thanks again 65mike for the info... It's very helpful....