Hi Brady, 
That happened to me more than once years ago. I found that the hex bolts can't be torqued down as much as the 12 points. Hasn't happened since going to all 12 pt cv bolts. 
�
Robert
1982 Westfalia

--- On Thu, 3/12/09, brady <dofunk@YAHOO.COM> wrote:

From: brady <dofunk@YAHOO.COM>
Subject: 3 bolts aint enough!
To: vanagon@GERRY.VANAGON.COM
Date: Thursday, March 12, 2009, 7:31 PM

So I'm in Boston in traffic. I just missed seeing a Volvo hit a guy on a
bicycle. Traffic is a mess, ambulance, fire and police are trying to get through
to the seen.  I'm pissed cause the Volvo and bicycle are screwing up my time
line ( yes I'm not being nice) radio is blasting. I finally get through the
intersection with all of this mess happening.  I went to the next light and when
it went green I took off....BLAM well I knew what that noise was.  Pulled over
out of the way of traffic so as to not screw up every ones commute take a looks
at the axle and... Well 3 of the 6 CV bolts ain't enough to Handel a quick
start with BFG 31"
Well I just locked the rear diff and drove another 40 something miles.  I love
my Syncr-Ho!