Need help with NV3500 part ID

[supermailman]

I'm trying to put everything together and I seem to be missing something. In the picture, part number 209 I don't seem to have. Does anyone know what it is and how I can get another one?

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[supermailman]

After looking around more, some websites are calling this a "selective shim"

"The transmission uses a selective shim by the front bearing to control main shaft end play."

This transmission was out of a 93 or 94 truck. It seems to be the only part I am missing.

 

[MIHELA]

I can't find a part like that in my GM catalog.

 

[MIHELA]

Looks like that part is on the earlier HM-290 but not the NV3500.

 

[supermailman]

That was something else I read elsewhere, but it didn't specify by year exactly what iteration of the transmission had that specific shim. I'll slap it all together and see if it destroys my new input shaft bearing unreasonably fast or not.