So what is the difference?
I have an 85 tin top. I just got close out announcement on parts from rock
auto and I see a clutch master cylinder (What is that??)

Some of you may recall a recent email from me about leaking breake fluid. I
intend to replace the Master Cylinder atop the guage cluster in the cabin
and the slave master cylinder to the top drivers side of the transmission.

Is there a 3 master cylinder in our vanagons that I dont know where it
lives and what it does?

1) Brake master cylinder
http://www.rockauto.com/catalog/moreinfo.php?pk=1608882&cc=1286445

2) Clutch master cylinder
http://www.rockauto.com/catalog/moreinfo.php?pk=6316683&cc=1286445

3) Clutch slave cylinder
http://www.rockauto.com/catalog/moreinfo.php?pk=968284&cc=1286445

Can someone educate us?

Thanks,
T.