YZ-4SF Standard Parts Gearbox Height Adapter.
This Is An Adapter Used For Adjusting The Height Of The Gearbox When Mounting It To The Bulkhead By Attaching It To Both Ends Of The Gearbox.
It Allows For The Adjustment Of The Traction And Maneuverability By Changing The Angle Of The Universal Shaft In Relation To The Angles Of The Suspension Arms And Upper Arms.