Hi Craig,
You're lucky that it is only the clutch master cylinder.
To replace it, you don't have to remove the instrument panel.
Replacing the brake master cylinder is more time-consuming
and expensive.

As described in the Haynes Service and Repair Manual
for vanagons:
"The clutch master cylinder is located inside the cab at
the base of the clutch and brake pedal mounting bracket.
Hydraulic fluid for the unit is supplied from the brake master
cylinder reservoir."

Harald
ex '81 westy
'90 westy

Craig wrote:
> I took my Vanagon (81) in today to have the leaky
> brake master cylinder replaced.  However, the shop called and said it was
> the clutch master cylinder.  Now, where is that located?  Is it under the
> dash too?