727 decoding

[dan juhasz]

I pulled the driveline from my 67 Coronet RT. Took 2 pictures of the stamping, I was surprised to see it appears to be the original trans if I’m not mistaken. I don’t know what the second set of numbers represent. Can anyone shed some light. What does the J stand for?
Thanks
Microsoft Word - Identify 727 Torqueflight (retrorarities.com)

 

[Lefty71]

2801541 Hipo 440 for 67- or 68... so, sounds original to me??

 

[Brandy]

Sorry, thought that was a 3..lol. Yeah, 67 440 hi perf.

 

[Brandy]

Letters D-P stand for Dodge/ Plymouth.

 

[69L48Z27]

Dan - I’ve tried to figure this out on my own cars and it’s not as easy as the 68 and on 727s. 2801541 is the part number and is correct for your car, 67 HP.
The rest is the issue. On later 727s the next four is your 10k day date code, or it’s supposed to be anyway. Last digits are the sequence number, not important. I have two cars with original 727s and the numbers are in order for build date but do not line up with any 10k day calendars. Some have said to add a 1 in front and then it works. Neither of mine did.
What is the build date of your car?

 

[69L48Z27]

Where did u find that info?

It’s in my 727 book. 1541 is the right part number for 67 440 HP.

 

[Brandy]

It’s in my 727 book. 1541 is the right part number for 67 440 HP.

Thought that was a three not an eight...lol. '2301541' not '2801541'...

 

[R/T Boy 67]

That trans number was used in 67 and 68, but yours is a 67 because the part number is followed by a seven digit number. The 68 and up had two four digit numbers following the part number. Check the casting date and see if it is before the scheduled production date of your car. If it is it is probably original.

 

[R/T Boy 67]

I'll just add a bit more. 69L48Z27 is correct, in that the digits after the part number are not a 10000 day calendar date on pre 68 transmissions. They are a sequence number that carries on from year to year, and can't be tied to an exact date without factory paperwork. I think the J might stand for the 1967 calander year. A 67 model year trans could have an H or a J stamped in, depending on whether it was made in 1966 or 1967. I don't have 100s of trans. to look at to verify this, so it is a guess at this point. I am 100% certain on the first part of the post.