Clutch slave cylinder question

Just wondering if the clutch slave cylinders from rb20, rb25, and r26 are interchangeable. Do they have the same bolt pattern? say i take an rb26 unit and place it on an rb25 tranny. Is that possible?

Would a 300zx slave cylinder be compatible with an rb25 transmission in terms of bolt patterns and strength?

RB26 and RB25/20 clutch slave cylinders are different, as RB26 uses a different style of clutch.

The RB25/RB20/RWD SR20DET and the 300ZX should all use the same style of clutch slave cylinder, as the gearboxes are all based on the same design(they also have same style clutch fork)

great thanks alot man!