Hi Helmut et al,

The rear disc brakes on an Audi 5000T may be worth checking out. Same bolt
pattern, and from experience I can tell you that they will work inside a
14" vanagon rim.  I have used mmy spare vanagon M+S snow tires on the rear
of the Audi for 2 winters, keeps the back from sliding out on snow nicely.
They would be an ideal place for a kit to be developed from.  The parking
brake works via the main piston/caliper so wheel hub mods should be
minimal, I suspect. An adapter to provide a flat hub surface to draw the
disc/wheel against is needed which would likely be made to accept the two
bolts from the caliper as well.  Time for some measuring and drawing.

bye, Tim