I would confirm that you can even get one first. I spoke to Steve @ Calmini and he said there "aren't any in the country" at this time.

Apparently this is nothing more than the LSD unit from the 300ZX-TT with a small modification to make it fit in the R200A diff. If you can scour your local junkyards and find a unit in good shape, I'll be they'll be glad to tweak/overhaul it and send it back to you for a reasonable price.

Brent
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