I don't believe our differentials have a drain plug. Feel free to drop the
pan if you want, but I always suck out as much gear oil as I can and then
replace with new oil. I believe a 17mm allen socket is the tool to remove
the plug. Fill until it starts flowing out, then install the plug.

Suction tool like this:

http://www.amazon.com/Plews-Lubrimatic-30-118-Suction-Gun/dp/B001ADP7TU

Bobby
On Tue, Jun 22, 2010 at 9:41 AM, Fillmore West <fillmorewst@gmail.com>wrote:

> Hi list,
> As a Complete Newbie at this Vanagon project
> I'm wondering just how to drain the gear oil
> in my 90 Automatic Final Drive?
>
> Can anyone steer me in the right direction?
> I see the filler plug
> but cant find a drain plug.
> Or, do I just take the pan off.
>
> Seems like a lot of extra work
> But with only about 1 quart of gear oil capacity
> I want to make sure it's right!
>
> --
> Bobby Brown
>