4.93 - 15x74 Final Drive for Mazda 3/6 5-speed gearbox

Final Drive for Mazda 3 & Mazda 6 – 5-Speed Gearbox

Available Ratio:

• 4.933 – 15/74

Material:

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

Hardness:

• HRC 56–60, ensuring outstanding resistance to wear and surface fatigue, even in motorsport and high-performance street applications.

Surface Treatments:

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

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

Heat Treatments:

To achieve maximum strength, 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

Performance Benefits:

• Increased torque multiplication and improved acceleration
• Designed specifically for Mazda 3 and Mazda 6 5-speed gearboxes
• High resistance to shock loads and sustained high-speed operation
• Suitable for motorsport and high-performance street use