OS Giken Super Lock LSD — Fits 1979-1985 Mazda RX-7 & 1990-2005 Mazda Miata (MT)

SKU: OSGMZ072-HA
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About OS Giken OS Giken engineers high-quality automotive parts and ...Read More

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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

Product Details

Product Description
Part Numbers
Sizing & Fit

About OS Giken

OS Giken engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full OS Giken lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Unlock Maximum Traction with the OS Giken Super Lock LSD

Engineered for Performance Enthusiasts

Elevate your driving experience with the OS Giken Super Lock Limited Slip Differential (LSD), specifically designed for manual transmission Mazda RX-7 (FC3S NA) and Miata (NA8/NB8) models. This high-performance LSD is engineered to provide unparalleled grip and control, making it an essential upgrade for track days, spirited driving, and competitive racing.

Key Features and Benefits:

  • Superior Traction: The Super Lock mechanism ensures optimal power distribution to both rear wheels, significantly improving acceleration and cornering stability.
  • Durable Construction: Built with OS Giken's renowned quality and precision, this LSD is designed for longevity and consistent performance under demanding conditions.
  • Precise Fitment: Tailored for specific Mazda models, ensuring a seamless installation and optimal integration with your vehicle's drivetrain.
  • Enhanced Handling: Experience a noticeable improvement in steering response and a reduction in wheelspin, allowing for more aggressive driving lines.

Vehicle Compatibility:

This OS Giken Super Lock LSD is compatible with:

  • Mazda RX-7: 1979-1985 (GS, GSL, GSL-SE, Limited Edition, S models)
  • Mazda Miata: 1990-1997 and 1999-2005 (Base, 10th Anniversary, LE, LS, M Edition, SE, Shinsen, STO models)

Please note: This LSD is designed exclusively for manual transmission vehicles.

Invest in the ultimate drivetrain upgrade for your Mazda. Discover the difference OS Giken engineering makes at GGCRACING.

Vehicle Fitment

Years Make Model Trim
1990-1997 Mazda Miata Base
1991 Mazda Miata SE
1993 Mazda Miata LE
1994-1997 Mazda Miata M Edition
1999 Mazda Miata 10th Anniversary
1999-2005 Mazda Miata Base
2000-2003 Mazda Miata SE
2000-2005 Mazda Miata LS
2003 Mazda Miata Shinsen
1979-1985 Mazda RX-7 GS
1979-1985 Mazda RX-7 S
1981-1985 Mazda RX-7 GSL
1983 Mazda RX-7 Limited Edition
1984-1985 Mazda RX-7 GSL-SE

Product Details

Product Description
Part Numbers
Sizing & Fit

About OS Giken

OS Giken engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full OS Giken lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Unlock Maximum Traction with the OS Giken Super Lock LSD

Engineered for Performance Enthusiasts

Elevate your driving experience with the OS Giken Super Lock Limited Slip Differential (LSD), specifically designed for manual transmission Mazda RX-7 (FC3S NA) and Miata (NA8/NB8) models. This high-performance LSD is engineered to provide unparalleled grip and control, making it an essential upgrade for track days, spirited driving, and competitive racing.

Key Features and Benefits:

  • Superior Traction: The Super Lock mechanism ensures optimal power distribution to both rear wheels, significantly improving acceleration and cornering stability.
  • Durable Construction: Built with OS Giken's renowned quality and precision, this LSD is designed for longevity and consistent performance under demanding conditions.
  • Precise Fitment: Tailored for specific Mazda models, ensuring a seamless installation and optimal integration with your vehicle's drivetrain.
  • Enhanced Handling: Experience a noticeable improvement in steering response and a reduction in wheelspin, allowing for more aggressive driving lines.

Vehicle Compatibility:

This OS Giken Super Lock LSD is compatible with:

  • Mazda RX-7: 1979-1985 (GS, GSL, GSL-SE, Limited Edition, S models)
  • Mazda Miata: 1990-1997 and 1999-2005 (Base, 10th Anniversary, LE, LS, M Edition, SE, Shinsen, STO models)

Please note: This LSD is designed exclusively for manual transmission vehicles.

Invest in the ultimate drivetrain upgrade for your Mazda. Discover the difference OS Giken engineering makes at GGCRACING.

Vehicle Fitment

Years Make Model Trim
1990-1997 Mazda Miata Base
1991 Mazda Miata SE
1993 Mazda Miata LE
1994-1997 Mazda Miata M Edition
1999 Mazda Miata 10th Anniversary
1999-2005 Mazda Miata Base
2000-2003 Mazda Miata SE
2000-2005 Mazda Miata LS
2003 Mazda Miata Shinsen
1979-1985 Mazda RX-7 GS
1979-1985 Mazda RX-7 S
1981-1985 Mazda RX-7 GSL
1983 Mazda RX-7 Limited Edition
1984-1985 Mazda RX-7 GSL-SE

Product Details

Product Description

About OS Giken

OS Giken engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full OS Giken lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Unlock Maximum Traction with the OS Giken Super Lock LSD

Engineered for Performance Enthusiasts

Elevate your driving experience with the OS Giken Super Lock Limited Slip Differential (LSD), specifically designed for manual transmission Mazda RX-7 (FC3S NA) and Miata (NA8/NB8) models. This high-performance LSD is engineered to provide unparalleled grip and control, making it an essential upgrade for track days, spirited driving, and competitive racing.

Key Features and Benefits:

  • Superior Traction: The Super Lock mechanism ensures optimal power distribution to both rear wheels, significantly improving acceleration and cornering stability.
  • Durable Construction: Built with OS Giken's renowned quality and precision, this LSD is designed for longevity and consistent performance under demanding conditions.
  • Precise Fitment: Tailored for specific Mazda models, ensuring a seamless installation and optimal integration with your vehicle's drivetrain.
  • Enhanced Handling: Experience a noticeable improvement in steering response and a reduction in wheelspin, allowing for more aggressive driving lines.

Vehicle Compatibility:

This OS Giken Super Lock LSD is compatible with:

  • Mazda RX-7: 1979-1985 (GS, GSL, GSL-SE, Limited Edition, S models)
  • Mazda Miata: 1990-1997 and 1999-2005 (Base, 10th Anniversary, LE, LS, M Edition, SE, Shinsen, STO models)

Please note: This LSD is designed exclusively for manual transmission vehicles.

Invest in the ultimate drivetrain upgrade for your Mazda. Discover the difference OS Giken engineering makes at GGCRACING.

Vehicle Fitment

Years Make Model Trim
1990-1997 Mazda Miata Base
1991 Mazda Miata SE
1993 Mazda Miata LE
1994-1997 Mazda Miata M Edition
1999 Mazda Miata 10th Anniversary
1999-2005 Mazda Miata Base
2000-2003 Mazda Miata SE
2000-2005 Mazda Miata LS
2003 Mazda Miata Shinsen
1979-1985 Mazda RX-7 GS
1979-1985 Mazda RX-7 S
1981-1985 Mazda RX-7 GSL
1983 Mazda RX-7 Limited Edition
1984-1985 Mazda RX-7 GSL-SE

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