****snip
I am pretty sure that no Vanagon diesel ever had a power steering pump.
=
Those things have a warning about not putting an A/C compressor on the
engine
printed up on a bright red sticker on the timing belt cover!  (Talk
about
underpowered!)
*****snip

Here in Europe power steering has been a popular option for watercooled
engines from
70 HP on. This includes the 1.6l Turbodiesel, excludes the non
Turbo-Diesels.
It was standard over here with all TD-Edition-Models
(Bluestar/Whitestar/Redstar /Hannover Ed./Wolfsburg Ed./ last limited
Ed.).
I drove a friends one for a while, works great.
Why should'nt it work in your cars, even when never official sold in
US?

Michael
Germany
58 split
77 westy
90 caravelle