This shift knob has a ½-13 mounting threads. you can print an adapter if you like. i designed it originally for a winters shifter. The top thread is m16x.1 and i purchased a cool red aluminum momentary button off the ZON.   

It is configured for AMS to fill in the text now. before I had AMS it was painted in by hand Just FYI.

purchase button here:

[https://www.amazon.com/dp/B08F3BGF68?ref=ppx_pop_dt_b_product_details&th=1](https://www.amazon.com/dp/B08F3BGF68?ref=ppx_pop_dt_b_product_details&th=1)