GE washer Knob/Bracket

Hello I have a GE washer model WHDRR418GWW

The control knob for selecting the load cycle was just free spinning and not picking the load, I was hoping it was just the teeth on the knob were broken but the knob is fine, it’s the teeth that the knob teeth mounts to on the washer itself that are actually broken. I was having trouble figuring out what the actual part is for this. any help would be appreciated.