To see if it is CVs or hubs you can put the VX on stands, put in 4lo, by hand turn front tires, you should see the axle shafts turning. If they are turning that will rule out those parts. Spider gears are probably the next thing I would check. Not positive but if the TOD had electrical problems or something inside was not working properly the lights would be misbehaving or the check TOD light would be on.
If the spider gears broke you might get some shavings in the fluid...but with the drain hole so small if the pieces are larger they may not come out.