Yes, you can flip the CVJ's over, even though they have an axle side and a hub side.  There's a groove scribed on the outer race to identify the end that's normally facing the drive hub.
  I've reversed them on bugs, busses and Vanagons, and drove them for 10's of thousands of miles, and many years. Nothing bad ever happened.  They are symetrical in design and it's not a problem.  I've been able to get many more miles out of CV's that had some wear and pitting on the 'force' side inside the outer ball bearing race.  By rotating them the 'wrong' way around after a good cleaning, inspection and repacking them with fresh grease, you'll buy some extra time until you can afford to replace them all with new CV's.  Just be prepared to replace them as soon as you can afford to do so.   

YMMV,

Mike B.

>If you could simply flip the CVs over, that would work, >too - but you can't do that, since the joints themselves
> have an axle end and a hub end.  So, you cannot flip >the paper slips around on the pencil.

>Karl Wolz