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Cusco

Type-RS 1.5-Way Limited Slip Differential

Fits: 94-05 Miata

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Pay over time available · Est. $41.63/payment
ⓘ

Illustrative estimate only, not a financing quote or guaranteed offer. Actual payments, frequency and terms vary by provider and eligibility. Taxes, shipping and add-ons are excluded.

Cusco Type-RS 1.5-Way Limited Slip Differential
Fits: 94-05 Miata
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Fitment

Please Note: Fits NA8 (1994-1997, 1.8L) and NB (1999-2005, 1.6L/1.8L) models. A/T cars with a factory viscous LSD need replacement side shafts. Shipped as 1.5-way; the ramp setting can be changed with an overhaul.
  • 1990-1997 Mazda | Miata
  • 1999-2005 Mazda | Miata

Description

The Cusco Type-RS Limited Slip Differential for the 1994-2005 Mazda Miata (NA8/NB) replaces the factory open or viscous differential for maximum traction. The Type-RS uses precision coil springs in the pressure plate, which apply activation pressure in the same direction as the initial torque for gentle, responsive clutch engagement, low power loss, and reduced chatter.

  • Genuine Cusco part number LSD 177 L15
  • Fits 1994-2005 Mazda Miata (NA8 1.8L and NB 1.6L/1.8L), rear position
  • Type-RS 1.5-way — dual-profile pressure ring allows switching the ramp setting with a simple overhaul
  • Initial torque 8-10kg; low initial torque for reduced power loss and less frequent oil changes
  • Precision springs maintain steady coil movement for stable, consistent operation
  • Use Cusco LSD gear oil (GL5 80W-140 or 80W-90)
  • Note: A/T models equipped with a factory viscous LSD require replacement side shafts

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