Hi Nick, no , the anti-spill check ball can't be installed on pre-1988 filler tubes.Robert1982 Westfalia

 
      From: Nick Feickert <thesuperflydisco@GMAIL.COM>
 To: vanagon@GERRY.VANAGON.COM 
 Sent: Friday, August 14, 2015 8:53 AM
 Subject: Re: Fuel filler tube issues
   
OK. Not getting any feedback on this issue. Only another question: Does
anyone know if the floaty ball end piece can be removed from the end and
installed on filler tube made pre 1988? Specifically, on a 85 tube that
has the same diameter?

    Nick