The factory upgraded 3/4 hubs came in some late 89's and 90/91's.
Not many (or maybe none) of us rebuilders use them, but instead we use a
custom hub made of gear material and not mild steel.
Even the air cooled trannys have the issue of cracking but with lower
powered engines it is not as prevalent.
The difference in a diesel or air cooled or WBX is the Ring/Pinion ratios as
the 1sr thru 4th ratios are the same.
Hope that helps...
Be Merry and Have a Happy
Daryl of AA Transaxle
425-788-4070
"On the cutting edge of Old technology"

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of
craig cowan
Sent: Wednesday, December 23, 2009 6:05 PM
To: vanagon@GERRY.VANAGON.COM
Subject: Re: Transmission Questions

My understanding of the transmission options is that from 83.5-91 the
transmissions are the same except for the stronger 3/4 slider hub that was
installed in 87-91 vans. The aircooled vans and the diesel vans are both
different than the WBX vans, and have different gearing each. (so there are
3 different gearing options). The Diesel van has a different bellhousing,
and all vans up to 84 had a different shifting system with many hard to
obtain parts.
I'm not sure that an aircooled van has the gearing you want for a zetec, but
i'm not sure what the gearing differences are between them, just always
believed they were different.

Please correct me if i'm wrong, as there are many more knowledgeable than
myself here.

-Craig
'85GL turned WESTY
BOSTIG in the back

On Wed, Dec 23, 2009 at 8:55 PM, Jonce Fancher
<streetbugs@verizon.net>wrote:

> Hi all
> I found a 89 Vanagon with a Bad trans. ( btw all are 4 speed questions)
>
> I have a trans from a 84.
> what if any differences are there in the trans between 80 up to 91?
> I know the Diesels are different in the bell housing but Im asking
> about the air to waters and anthing in between.
> I also found a cheap 83 Air vanagon and a buddy needs a Trans for his
> 82 Diesel ( he is doing a zetec ) we thought or think we can get the
> 83 pull the trans and stuff it in his 82 Diesel. His Diesel trans is
> fine so not sure why we need to do it but, this is where we stand.
>
> So I guess what I want to know is can 4 spd manual trans swap from
> vanagon to vanagon without any OR many issues??
>
> Thanks Jonce
>