Final Drive for Volkswagen  02A and 02J gearbox (DQ250)

Ratio:

• 4.79 - 14/67

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  Material:

  Manufactured from billet and forged Ni-Cr-Mo steel, delivering exceptional mechanical strength, high impact resistance, and long-term durability under high torque and aggressive driving conditions.

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  Hardness:

  • HRC 56–60, ensuring excellent resistance to wear and surface fatigue, even in demanding motorsport applications.

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  Surface Treatments:

  Multiple advanced surface treatment processes are applied to maximize durability and reliability:

  • Sandblasting – Ensures uniform surface finish and optimal surface preparation
  • Shot peening – Increases fatigue strength by inducing compressive surface stresses
  • WPC treatment – Enhances surface hardness, reduces friction, and improves micro-surface durability

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  Heat Treatments:

  To achieve maximum strength, dimensional stability, and service life, the following heat treatments are applied:

  • Carburizing – Produces a hard, wear-resistant surface while maintaining a tough core
  • Cryogenic treatment – Improves dimensional stability, wear resistance, and long-term gear mesh performance

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  Performance Benefits:

  • Increased torque multiplication and improved acceleration
  • Designed specifically for Renault JC5 gearboxes
  • High resistance to shock loads and sustained high-RPM operation
  • Suitable for motorsport and high-performance street use