Anyone who has installed a silver sports automatic trans in a A-body?

Sweet car! And you are (kind of) local. Cool.

Curious why you are dumping the TKX. Not judging, just curious.

Mopar Muscle did an install of one of those back when it was still Keisler. It was in a B-Body, but maybe it would help?

https://www.motortrend.com/how-to/0908phr-keisler-a41-automatic-transmission/
They used a cable to shift the trans.



I guess Keisler supplied a new detent plate for the slap stick shifter, too.

Have you reached out to SST?