How about the rubber bushings that go at each corner of the radiator.
    http://busdepot.com/details.jsp?partnumber=171121276D
It has been a while since I replaced them, but I seem to remember them being pretty
large. And there is always the on-line hardware places like McMaster-Carr.
Jerry in AZ

----- Original Message -----
From: "Jarrett Anthony Kupcinski" <kpcnsk@YAHOO.COM>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Thursday, April 23, 2009 9:02 PM
Subject: Re: rubber luggage rack washer

> The hardware store wasn't much help.  The largest washers that even
> came close to the right thickness were neoprene rather than rubber.
> Haven't tried the FLAPS yet, though I am not optimistic.
>
> -Jarrett
> '89 Westy, Oly
>
> On Apr 23, 2009, at 3:08 PM, Chris S wrote:
>
> > I'd visit a local hardware store to see if they have any 1'' washers
> > that would work.  They may not have metric sizes.
> >
> > On 4/22/09, Jarrett Anthony Kupcinski <kpcnsk@yahoo.com> wrote:
> >> I'm looking for a source for the rubber washers used between the
> >> luggage rack and roof brackets.  These have the approximate
> >> dimensions: inner diameter 8mm, outer diameter 25mm, 7mm thick.
> >> Thanks.
> >>
> >> -Jarrett
> >> '89 Westy, Oly
> >>