Hands free shifting using a Shiftnoid.
For reverse valve body TH350, TH400, C4, C6, 727, 904, A500, A518, 46RE, 47RE, 48RE, 46RH, 47RH, 48RH transmissions.
Comes with 2 momentary switches.
Comes with cable and bracket kit.
Here's a video to watch;
 
https://www.youtube.com/watch?v=7SGDjdoTNrY