Hi Dave,

That doesn't look like the Miata Torsen. And we don't know for sure if the Miata Torsen will fit the Sporty. (we do know the ring and pinion will fit)

By the way, it's the early Miata clutch type limited slip that has only about 20% torque bias. The early one will not fit the Sporty, it has a much smaller ring and pinion.

The later Miata limited slip (94+) is the one that might fit the front of the sporty and it has 200 or 300% torque bias.

The Miata Torsen LSD is not very hard to find but it is almost always over $450. That's beyond my budget for something that only "might" fit.