Redcat Racing BS808-002 Wheel Hex with Pin 4PCS (for axles that use wheel nuts with teeth on the back, NOT for axles that use nylon locknuts)
Works with these models ONLY: AFTERSHOCK 3.0,AFTERSHOCK 3.5,AFTERSHOCK 8E,EARTHQUAKE 3.0,EARTHQUAKE 3.5,EARTHQUAKE 8E,GROUND POUNDER