wheelsmithy (Joe-with-an-L)
wheelsmithy (Joe-with-an-L) GRM+ Memberand PowerDork
1/29/23 10:35 p.m.

So, internet sleuthing has led me to the rumor that S2000 torsens are the exact same as NA/NB miata torsens.  Do they actually just bolt in in place of, let's say a stock automatic NA open differential? Axles fit? Spline count the same?

You are an enterprising group with many answers. Is it true? I ask, because we seem to be in some confluence of reality where S2000 diffs are cheaper than miata diffs. Who knew?

GameboyRMH GRM+ Memberand MegaDork
1/29/23 10:48 p.m.

Found a post here saying they can be swapped in but you need Mazdaspeed axles:


Someone implying they've run an S2k diff in a Miata?


Someone else trying to put an S2k diff in a Miata, couldn't find MSM axles, looked into S2k axles but they're different:


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