Three-Piece Clutch Kit, All Six-Cylinder With Full-Synchro Gearbox. 9.5" Diameter. Applications: 4.2 E-Type Very Late MK II Later 3.4S/3.8S 240/340 420 420G MK X. The pilot bushing (CO-2226) and Lock Plate (CO-4810) should always be replaced with the clutch. Not sure what gearbox you have? Non-synchro gearboxes have reverse to the left and up; synchro gearboxes have reverse to the left and down.