Stephen,

1.) I don't know the exact quantity but it's slightly less than 2 quarts for
the final drive gear box.

2.)  Take a look at the pictures I took while resealing my trans.
http://www.home.surewest.net/heinlein/trans.htm

3.)  Final drive gear oil is usually yellow/gold, more brown if really old.
Transmission fluid is usually red.  If you open your final drive and you
have redish oil coming out and you might have a leak from your transmission
into the final drive.  With your van level and multiple checks over time if
you see that the final drive oil level is increasing and your not adding oil
and your transmission is loosing oil then most likely you have a leak
between the two.

Be careful torquing the final drive plate, it's an easy place to have oil
leaks if it's over torqued.  You'll most likely want to replace the gasket
when you put the cover back on, about $25.

Hope this helps.

--
Blake Heinlein
1984 Westfalia
Sacramento, CA
blakeheinlein@gmail.com
http://www.home.surewest.net/heinlein

On 2/2/06, Stephen DeMocko <SDeMocko@fdsmfg.com> wrote:
>
> Volks,
>
> I wondered if any of you out there know this info off the top of your
> heads. One, what is the quantity of gear oil held in an '85 automatic
> final drive? Two, are those back to back seals in the final drive the
> only place automatic fluid could be going in a vehicle that doesn't leak
> a drop.  Three, when I drain the gear oil from the final drive this
> weekend will I be able to visually tell I have auto fluid in it? Or will
> there only be the additional volume based on the fluid level at the
> lower edge of the fill plug?  I replaced those seals about 6 mo. ago.  I
> have fluid loss at the rate of reduction from the high mark to the low
> mark on the dip stick about every two to three weeks.  Thanks in advance
> to those who spend time considering my questions.
>
> Stephen DeMocko
> ('85 Westy Luci)
>