An adapter that allows you to attach an aftermarket shift knob to the Simjack load cell handbrake from AliExpress. The knob screws onto an M8 bolt fed through from the bottom. Use the screws and bushings that came with the handbrake to attach the adapter.

I placed the upper hole to position the handle where the stock one would be when it is adjusted fully forward. I have attached the Fusion 360 file if you want to modify it.

Printed it at default “.20mm Standard” settings with 999 walls and it's been going strong for a few weeks now. I cut the mount in half and laid each “leg” flat on the build plate. This way, no supports are needed and the mount holes remain round.