Exactly correct Sam...All water cooled gas tranny's are interchangable with
no appreciable differences.
Daryl of AA Transaxle
Duvall, WA. (Seattle area)
1-877-377-0773 toll free
425-788-4070
aatransaxle.com

----- Original Message -----
From: "sam.cooks" <sam.cooks@VERIZON.NET>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Thursday, January 15, 2004 8:03 PM
Subject: Re: Transaxle differences: 1.9 vs 2.1

> Volks,
>
> This may be more than most want to know, but I found it and will pass it
> on.  I remember from archive searches and pmails that some of the most
> knowledgeable folks on the list have said many times that all of the
> transaxles discussed below are interchangeable.
>
> According to Bentley, p. 2, the DU and ABD 4 speed 091/1 transaxles were
> used in the 1.9l Vanagons.  The ABD and ACW 4 speed 091/1 transaxles
> were used in the 2.1l Vanagons.  Apparently there were some ABDs in both
> models.
>
> On page 34.9 there is a small table giving the complete ratios for the
> both the DU and ABD 091/1 transaxles with a subheading of 1985 MY
> vanagons.  All ratios are the same except that there is a tiny
> difference in the third gear ratio changing from 1.26 in the older DU
> transaxle to 1.225 for the newer ABD.  All other individual gear ratios
> are the same.  The final drive ratio for the older DU is 4.86, while
> that for the newer ABD is 4.83.   The same data is found for these two
> transaxles on p. 35.32.   The gear and final drive ratios for the ACW
> are found on p. 35.33 and are the same as the ABD.
>
> So, it seems that some 1985's had a ABD transaxle with the same ratios
> as were standard for all 1986 and later 091/1 equipped Vanagons whether
> they had an ABD or an ACW transaxle.   Maybe this is like some of the
> other changes that were standard 1986 MY and later which began being
> slipped into the 1985 models.
>
> I remember reading this stuff when contemplating replacing the tranny in
> the 85 I bought - turned out to be a bad CV joint, and before I sold an
> 84 to someone who wanted it to put into an 87.  So I looked it back up
> and here it is  FWIW.
>
> Sam
>
> --
> Sam Walters
> Baltimore, MD
>
> 89 Syncro GL
> 85 Westy Weekender
> 84 Vanagon, original owner, soon to be retired, just too many problems
>
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