Our hydraulic clutch kit includes a Tilton release bearing, ¾” bore clutch master cylinder and billet aluminum firewall adapter plate as pictured. The adapter plate mounts brake and clutch master cylinders side by side while strengthening the critical firewall area. You will get a much smoother, driver friendly, clutch pedal feel when installing a hydraulic throw out bearing. Reduces the harshness of the instant lock up smaller diameter racing clutches. We can also machine your OE or Quartermaster bellhousing to mount the Tilton hydraulic release bearing for an additional charge.