Gregor,

I had a similar symptom with my 84 automatic westy.

First I though it was the brake but it turns out to be some pins that goes
from the inside of the motor core to the torque plate. Each time I was
applying the brake it made the torque plate hit the pins. My mechanic told
me that those pins where part of a sensor of some sort used to time the
motor. It is not use anymore (don't know why) and can be punch out from the
core.

Once removed my west was running fine again

Good luck

JP
Montreal

Date:    Tue, 27 Jun 2006 18:05:10 -0600
> From:    Gregor Brandt <gbrandt@MARIONETTE.CA>
> Subject: Clunking when braking
>
> I get a pretty serious repeating clunking sound when I brake.  The
> harder I brake the louder the clunks.   I'm not certain if its from
> the front or back yet, I need another person with me when I drive.
>
> Any ideas with that limited description?
>
> Thanks
>
> Gregor
>
> -