Okay,
I must confess, although the clutch master cylinder does fit!!!
Here is the 1 hour of minor engineering that needed to be done in order for it to be aligned straight and not angled when fitted! (Just incase you all go buying them and wonder why your master cylinder is leaning to one side slightly!!
Saying this, it is actually a universal part for all 3 datsun models (240/260/280), but they just drill the holes in the different places hence the overly large flange bracked with plenty of drilling space (waste material) to start off with.
Took about an hour from start to finish as I wanted it exactly centre, and to look like it had not been modified. (End result within less than 0.5mm exact line of centre from bolt holes measured digitally - so pretty damn accurate!).
Actually made a lot thicker (2x as thick aluminium on the mounting bracket - still plenty of thread on the studs on the firewall to pass the whole way through the nuts used once fitted and secirely tightened down) and better than OEM and an upgrade on the 240/260 parts due to the large bore size.
If you are going to do this mod, it is okay to drill and cut the excess material as I have as there is still plenty of material to retain ample enough strength in the mounting bracket and still far more than the oem mounting plate has alltogether!
Also once fitted, does not fowl on the throttle linkage once fully opened or fully closed, just incase anybody wanted to ask that question.
So there it is!
Enjoy!!
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Just waiting on my custom braided clutch line to arrive now!