That cover is for the 2nd gear brake band piston. The leak can be due to the
cover O-ring or the one of the seals on the piston. Corrosion of the housing
or the cover can also cause the leak. If you remove the pan and the valve
body a "C" clamp can be carefully used the push the cover back on the get
the snap ring back in. You have to be careful that the band is properly
seated on the piston pin and the adjustment screw. 

Seals are 003323525A, 010323487C, and 010323533. Snap ring is 010323537A.

Dennis

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of
greentabe-vanagon@yahoo.com
Sent: Monday, December 05, 2011 2:09 AM
To: vanagon@GERRY.VANAGON.COM
Subject: Automatic transmission leak - fixable?

Let me say that this is the first vehicle with an automatic transmission I
have owned.� Previous vanagons and all other vehicles were all standards.�
I'm picky.

There's a round cover on the left (driver's side) of the automatic
transmission.� It is held on with the World's Biggest Internal Snap Ring
(WBISR for short).� Is there an o-ring or other gasket under the round cover
I can replace?� What's the best way to get the WBISR off and on again with
transmission in van?

Thanks!

tabe johnson/90MV