transmission date code

[hdhikaru]

Hi there,
this is off from 39 ULH. can you tell if its year correct or not... please tell me how to read this #s. tks Shin
2022-09-09 15.53.jpeg2022-09-09 15.39.jpeg

[duffeycycles]

GO=July 1940

[Rubone]

Hi there,
this is off from 39 ULH. can you tell if its year correct or not... please tell me how to read this #s. tks Shin
2022-09-09 15.53.jpeg2022-09-09 15.39.jpeg

Does it have the correct shift pattern for '39 with neutral between 2nd and 3rd? Many '39 models had the gearbox changed because people did not like that pattern. H-D changed it back in 1940 to the 36-38 pattern.

[hdhikaru]

thanks guys ... duffeycycles, it might be 50? Rubone, actually it has reverse gear the pattern is R-1-2-N-3-4 looks like year correct?

[hdhikaru]

WOOPS!!
made a mistake/// shift pattern is R-1-N-2-3

[duffeycycles]

Shin,Shift lever up is pre '47,the case had clearance for shift lever down in 1950

[Speeding Big Twin]

Shin, date code G 0 indicates the case was cast in July 1940. If it had been cast in 1950 the code would probably have had no letters, only numbers. For example a BT trans case cast in Jan 1950 had date code 1 0. For more info about these date codes and other BT trans case ID here’s a link to a thread I started on the Panhead and Flathead forum in 2016.



https://www.hydra-glide.net/phpBB3/v...ic.php?t=15569



Under the trans lid you may find casting number 33-35 and a date code. What’s the date code? Photo?
Also looks like you have a starter cover but I can’t tell much about it yet. Any ID outside the starter cover?
Eric

[Jerry Wieland]

1940 transmission would have a bronze insert for 5th mounting bolt. 1950 transmission would have a steel insert for 5th mounting bolt. 1950 is also clearanced for down shifting lever.

Jerry

Shin, date code G 0 indicates the case was cast in July 1940. If it had been cast in 1950 the code would probably have had no letters, only numbers. For example a BT trans case cast in Jan 1950 had date code 1 0. For more info about these date codes and other BT trans case ID here’s a link to a thread I started on the Panhead and Flathead forum in 2016.



https://www.hydra-glide.net/phpBB3/v...ic.php?t=15569



Under the trans lid you may find casting number 33-35 and a date code. What’s the date code? Photo?
Also looks like you have a starter cover but I can’t tell much about it yet. Any ID outside the starter cover?
Eric

[Speeding Big Twin]

1940 transmission would have a bronze insert for 5th mounting bolt. 1950 transmission would have a steel insert for 5th mounting bolt. 1950 is also clearanced for down shifting lever.

Jerry

I mentioned those things in my thread on the Panhead and Flathead forum in 2016 which is part of the reason I posted a link to it. And there I also mentioned other things to look for.
Eric

[hdhikaru]

thank you, guys!! very helpful. Speeding big twin... I do not see any ID anywhere on the kicker cover, so it must be after market. will check the lid later. tks

[Speeding Big Twin]

You're welcome. No ID on the starter cover doesn’t necessarily mean it’s AM. Maybe it is and maybe it isn’t but I can’t tell much about it yet. It may help if you post photos of its outside and inside. Thanks.
Eric