I love this list!  My door started doing this this summer, and is on my list. I had no clue what it was, and likely would not have figured it out looking for a missing part like this.

Time for new rollers too and I also want to do Alistair's HDPE tape in the lower track.  How's that working out Alistair?  
https://shufti.blog/?s=roller and https://shufti.blog/2012/08/23/vanagon-sliding-door-quietening-hack/ 

Stuart

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of Dan N
Sent: Sunday, December 04, 2016 10:03 AM
To: vanagon@GERRY.VANAGON.COM
Subject: Re: sliding door... please help

thanks...

time to service the roller bearings, clean and grease the rails etc etc too
- not just pop that piece of rubber in.. right?