You will need something like this . It was for my brz maybe different size
BLOX RACING-BXAC-00242 12x1.25 Adapter for Reverse Lock-out Lever - Black https://www.amazon.com/dp/B009SBJZDK/ref=cm_sw_r_cp_api_i_WGT0KVSM5284HAZXAPYS?_encoding=UTF8&psc=1
Weird it loads up just fine for me..... Try this?
I used this to cover the gap with my shifter. It screws on first and then you screw the knob on top of it. Looks pretty clean.