[A.T. RockDriller]

Mater63...
The slave cyl on that '63 is a thirsty one.
When I put a hydro-boost on my '63 K1000 I started with a new clutch MC off of a Wrangler.....because it was all that I could find that would fit next to the new hydro-boost.
Like you know....not enough volume. So.....Don't be laughing at me....
But I did a temporary di-section of the old side by side set-up.
It still works fine....and I havn't found a replacement with adequate bore & stroke to do the job. So it is still there.
I just don't pop the hood to show off the hydro-boost all that often.