Have your tires worn evenly, or is one of them larger than the other? A little difference in tire size could possibly cause the locker to go haywire when one wheel is spinning faster/slower and causing the locker to lock up. At least thats just a guess.....

if anything its an idea outside the box (assuming its a mechanical problem)


Not saying its the aussie's fault (i love my aussies too), but i'd call em' up and see if they have gotten any other calls on this and see how similar problems were diagnosed and solved....
just my .02 <img src="/forums/images/graemlins/zombie.gif" alt="" />
goodluck
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