ARB for the rear. Nothing for the front. You have to do a V6 front axle swap to get an ARB. There is another one out of OZ that appeeared recently. I think it may have been Detroit-like, can't recall. Search user FrankR as he got one.

You can also do a V6 axle swap and fit an LSD from a Starion/Conquest. Search past threads for this as well.

Another option for the rear is to swap an earlier Montero Sport axle with locker into your SWB. Lastly, you could get a Gen II locker from an SR and fab it up for leafs.

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