Here's the problem, line coming out of the back/bottom of the master cylinder. The crack was facing straight down. Was not leaking over winter, but must have had a bit of water around the fitting? I remember that the road was wet and muddy the last day I drove it last fall. So maybe a small bit of water settled there and froze. Then the first time I drive it this year it let loose. While I have it all out I am going to put the new parts inside the MC, spring, cup, piston and all the other little stuff in there. Should be back to normal soon!
Mike