Boomba Racing Ford Fiesta ST Short Throw Shifter thanks to westcoaST on Fiesta ST Forum - Manual (Page 6)

29. Insert the Boomba Racing shifter arm into the
shifter housing. Gently tap the shift pivot pin into
position.
30.Reinstall the centering spring and the side
shifter adapter.
31.Reinstall the side shift arm. 32. Install the shifter and secure it to the base.*
33. Install the shifter cables. Reconnect the shifter
links.
34. Install the center console.