This adapter allows you to use Wilwood Clutch Master cylinder on your JZX100.

Why would this be of benefit? For starters this allows the use of a remote reservoir to create less problems in the high heat areas. More importantly this allows the use of 3/4 bore master cylinder for those using T56 or similar internal slave cylinders. BUT it can still be used with normal 5/8 bore for those with regular slave cylinders.