Right side ones may be available. Check out this old post of 
mine...

Date:         Fri, 6 Dec 2002 12:24:20 -0500
Reply-To:     80 Westy Pokey <pokey@VANAGON.ORG>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         80 Westy Pokey <pokey@VANAGON.ORG>
Subject:      FS Sliding REAR window?

A few weeks ago I picked up a sliding window for the drivers 
side rear (near the closet) off of ebay.de.

http://cgi.ebay.com/ws/eBayISAPI.dll?
ViewItem&category=15788&item=1780035039

I had never seen one before so I quickly snapped it up. My 
lament was that I did not have one for the passenger side.

Well, having done some surfing around it appears that they 
are for sale new. I saw "Volkswagen T3,type25 1979-1990 Rear 
slider o/s, n/s" windows for �94.25 at:

http://www.rainbowconversions.co.uk/windows.htm 

I have not contacted the vendor, but what else could it be...

Thanks,
Chris

---- Original message ----
>Date: Wed, 9 Apr 2003 03:55:24 EDT
>From: JordanVw@AOL.COM  
>Subject: Re: left REAR slider window FS:  
>To: vanagon@GERRY.VANAGON.COM
>
>In a message dated 4/9/03 3:31:22 AM Eastern Daylight Time,
>green536@HOTMAIL.COM writes:
>
>
>> anyone have a right rear slider for sale? LR doesnt work 
for a camper.  :(
>>
>>
>>
>>
>
>good luck finding one :<)   IF they were afailable, they'd 
only have been
>available in the RHD markets..
>
>chris