I had this problem.
I did exactly what Daryl said to do and it worked for me.

-Ry
http://www.google.com/profiles/rylincoln

On Mon, Aug 9, 2010 at 5:56 PM, Daryl Christensen <daryl@aatransaxle.com>wrote:

> Try to pound a Torx bit into the "used to be hex" if its still roughly the
> same size..Think I use either a T35 or T45.
> I also use a pair of "parrott jaw" channel lock pliers..They grab harder
> the
> more you pull on them due to the curved jaws.
> Hold a tire and pull or push like crazy and have yet to be disappointed.
> Not
> a lot of throw using them, but it only take a bit to get the ball rolling.
>
> Daryl of AA Transaxle
> 425-788-4070
> "On the cutting edge of Old technology"
> 86 Syncro Westy with a Zetec in the trunk
>
>
> -----Original Message-----
> From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of
> Courtney Hook
> Sent: Monday, August 09, 2010 3:27 PM
> To: vanagon@GERRY.VANAGON.COM
> Subject: Well so far it's beat me. >:-(
>
> Alright, I've gotten every CV joint allen head out except for one on the
> stub end. The AH PO obviously was a wanker, as there is NO way this thing
> wants to come out. He must have had the Incredible Hulk torque it up for
> him. Did I mention that it already looked like he re-used a bolt that was
> somewhat ovaled instead of 6 sided!!Things I've tried so far after WD-40
> over the last few days, and tapping it with a hammer:
>
> 1) Quality Crafstman allen head socket and ratchet. No way, just spun out.
> 2) Vice Grips on outside - just spun around the bolt even though I reefed
> them on there as hard as I could, and checked I had clearance to spin the
> grips. No way.
> 3) Took a cold chisel and ridged the outside circumference to get the vice
> grips to bite better instead of spinning. No way, still spun. :-(
> 4) Threw a temper tantrum and spoke in tongues I learned in the Army. Wife
> not impressed. Me either.
>
> So what's number 5?? Get out my mig, and weld an allen wrench piece into
> the
> hole and use it as an "extension" Little worried about the grease, oil,
> gas,
> electronics about this one.
> Thanks,
> Courtney (Eyeing some Bud Limes right about now so I don't start speaking
> in
> tongues again)
>
> ++++++++++++++++++++++++++++++++++++++++++++++++++
> Always be yourself, because the people that matter don't mind,
> and the ones who mind, don't matter.
>