That was my first thought.

Here's a smaller file size image showing vent location on an air cooled and
WBX transmission:

https://lh5.googleusercontent.com/-AUBc1s0RqIg/S0UxtunZ3DI/AAAAAAAACRI/knC5ZV-2ryo/s1024/TrannyVentHoles.jpg

WBX is on RH side. Follow oil drip up and you will see the hole on each.

This may help you if using a Vanagon un-aware tech.

Neil.

On Thu, Nov 24, 2011 at 7:34 AM, Mike S <mikes@flatsurface.com> wrote:

> At 08:57 AM 11/24/2011, Pete O wrote...
>
>  Question for those in the know:  What would cause these new seals to
>> fail?
>> I assumed when it happened before, it was age related.  Do you think
>> the
>> transmission or transaxle is generating heat somehow and causing the
>> seals
>> to compromise?
>>
>
> Vent plugged by mud wasps? Cold would pull air in through the seals,
> then when it heats up while driving, fluid gets pushed out past the
> seals.
>

--
Neil n

65 kb image Myford Ready For Assembly  http://tinyurl.com/64sx4rp

'81 VanaJetta 2.0 "Jaco"  http://tubaneil.googlepages.com/

Vanagon VAG Gas I4/VR Swap Google Group:

http://groups.google.com/group/vanagons-with-vw-inline-4-cylinder-gas-engines