Sebring Gear Set T10 Build Date.

[Craner]

Would build dates and casting dates of these transmissions be based on the car build date?

Typically 1-3 weeks before the car assembly date, or would this vary based on these transmissions being unique to the GT350? 
Possibly they were built in batches and wouldn't follow what is typical of "standard mustang K code sub assemblies".

Thanks
Fran

[Brant]

Would build dates and casting dates of these transmissions be based on the car build date?

Typically 1-3 weeks before the car assembly date, or would this vary based on these transmissions being unique to the GT350? 
Possibly they were built in batches and wouldn't follow what is typical of "standard mustang K code sub assemblies".

Thanks
Fran

Based on my observations, you can generally go by this. 1-3 weeks may be a little "tight," but I have found them much closer to build times than, for example, Koni shock or Holley carb. dates.

[Craner]

Thank you!

I could use some help with interpretation of the case and tail shaft dates.

- decode the different casting date formats used for the T10 transmission?

Specifically the 'clock type' format used before and after letter 'month' and number 'day'
Attached a case casting date for discussion..

Thank you
Fran

[Coralsnake]

Those are the screws from the plate that held the date code plaque into the mold, not a clock

[Craner]

Thank you.  That helps.
I was trying to understand the machining date stamp on the case. (located near the side cover rear section)   
The letter stamped for the month is not great.
Guessing it might be an "E" or possibly a "B". 

See attached photo of this same case. 

Format: month, day, year, shift

Decoded: "E or ?", 26, 1966, 3rd shift.



Fran

[s2ms]

Looks like 'E26 3' to me...

E - May
2 - 2nd
6 - 1966
3 - 3rd shift

[98SVT - was 06GT]

Don't forget these are not "Ford" transmissions but came from a supplier whose casting numbers may not jive with the Ford database in our minds. There may also be a longer lead time from manufacturing to installation due to having to be shipped and placed into inventory. Ford could possibly not schedule cars until enough were on the shelf not wanting to risk supplier delays.