Shifter linkage shaft - Where to Buy?

[aps63]

Trying to find the shifter linkage shaft for a th350 trans.
Mine's got some really nice grooves in it so the seal can't seal.
Any ideas on where to get a new one?

https://static1.pt-content.com/images/pt/2013/09/ShifterLinkageshaftworn_zps88c90b3c-1.jpg

[aps63]

Spent a couple of hours yesterday looking on the web for the shaft. No luck. Seems nobody sells them.
Went to my local trans shop and his response was "Oh yeah, I have a drawer full of them." Problem solved.