Details

• Brand:

  

• SKU:

  38104AA430

• Other Names:

  Pinion Assembly, Gear Set

• Description:

  Legacy. Wagon. WRX. Impreza. Manual trans. 5 speed. With turbo. 5 speed. Auto trans, cvt, Outback.

  
  

  Ring & Pinion – Subaru (38104AA430)

  The Ring & Pinion – Subaru (38104AA430) is a Genuine OEM drivetrain component crafted to restore or elevate your vehicle’s differential performance. This matched gear set—consisting of a ring and pinion—ensures precise torque distribution, minimal backlash, and whisper-quiet operation. Engineered to Subaru’s exacting factory standards, it provides the quality and reliability trusted by professional mechanics and DIY enthusiasts alike.

  • Genuine Subaru OEM ring and pinion set for exact gear matching

  • Part Number: 38104AA430 for straightforward identification and replacement

  • Made from high-strength, heat-treated alloy steel for long-lasting durability

  • Designed for optimized tooth geometry, smooth power delivery, and low noise

  • Compatible with specific Subaru differential models to guarantee precise fitment

  • Perfect for professional differential rebuilds and DIY drivetrain upgrades

  Forged from robust alloy steel, this gear set undergoes advanced machining and precision heat treatment to achieve ideal tooth profile and surface hardness. The hobbing and finishing processes ensure accurate contact patterns, which translate to smoother power transfer and resistance against wear—even under intense driving demands.

  For automotive professionals, the Ring & Pinion – Subaru (38104AA430) speeds up rebuilds thanks to its factory-matched pairing, eliminating the need for custom shimming or calibration. DIY mechanics will also benefit from its plug-and-play design—it installs seamlessly into compatible Subaru differentials, ensuring dependable performance from the beginning.

  Properly installed, this OEM set delivers ultra-low backlash and minimizes vibration, enhancing driveline smoothness. Its hardened surfaces resist chipping, pitting, and premature wear, making it an excellent choice for high-torque applications or performance-oriented vehicles.

  Opting for the Ring & Pinion – Subaru (38104AA430) helps preserve your differential’s factory handling, safety, and reliability. By choosing Genuine OEM components over aftermarket alternatives, you safeguard your drivetrain’s integrity and enjoy long-term operational peace of mind. Whether you’re rebuilding a worn differential or upgrading for improved performance, this gear set delivers precision, durability, and the assurance of original Subaru engineering.

  
  

• Condition: New
• Notes: Included with differential assembly.
• Replaces:

  38104aa390

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