Read this article http://www.van-cafe.com/home/van/page_16_9/cv_joint_maintenence.html
gives a good picture about what's going on with CV Joints.

Axles on Auto Transmission are longer on one side than the other...for manual tranny you're OK.� Says so in the above article.

Rich
San Diego

--- On Mon, 4/18/11, Mike S <mikes@FLATSURFACE.COM> wrote:

From: Mike S <mikes@FLATSURFACE.COM>
Subject: Re: CV Joint Question
To: vanagon@GERRY.VANAGON.COM
Date: Monday, April 18, 2011, 6:14 PM

At 08:55 PM 4/18/2011, Mike wrote...
>Just mark an arrow on each CVJ indicating which way it was rotating,
>then swap them around (old inners become new outers) so that each one
>will
>rotate the other way when it's all back together.

That doesn't work. Just flipping a shaft end-for-end (or moving CVs
between ends, reversing the direction of movement) doesn't change the
direction of load on a CV. For example, the right rear half shaft is
stressed counterclockwise, swapping it end-for-end doesn't change that,
even though the normal rotation of the CVs has been reversed.

You need to flip them inside out where they are, or swap the whole
shaft assemblies side to side (if possible - can be done on some
transaxles, not on others).