Cusco Final Gear

2013–2017 Subaru BRZ / 2017 Toyota 86 6-Speed Manual Transmission

965 029 A45

Overview:

The Cusco Final Gear is a precision-engineered drivetrain component designed specifically for the Subaru BRZ models from 2013 to 2017 and the Toyota 86 model year 2017 equipped with a 6-speed manual transmission. This final gear set features a 4.556 gear ratio, offering a significant enhancement in acceleration and throttle response by altering the final drive ratio. Ideal for enthusiasts seeking improved launch performance and more aggressive driving dynamics, this gear set transforms the driving experience without compromising reliability.

Whether you are a weekend track warrior or a spirited street driver, the Cusco Final Gear delivers a noticeable difference in vehicle responsiveness, making it a popular upgrade for those looking to maximize the potential of their naturally aspirated boxer engine platform.

Key Features:

Engineered for performance and durability, the Cusco Final Gear offers the following key features:

• Optimized 4.556 final drive ratio for enhanced acceleration and quicker gear transitions
• Direct fitment for Subaru BRZ (2013–2017) and Toyota 86 (2017) with 6-speed manual transmissions
• Manufactured from high-strength alloy steel for superior durability under high-stress conditions
• Precision-machined teeth to ensure smooth engagement and reduced drivetrain noise
• Improves throttle response and launch capability without requiring additional modifications
• Designed to maintain OEM reliability and compatibility with stock transmission internals
• Ideal for both street and track applications where enhanced performance is desired

Construction & Design:

Cusco final gears are crafted using premium alloy steel, selected for its excellent strength-to-weight ratio and resistance to wear. The gear teeth undergo a meticulous machining process to achieve precise tolerances, ensuring optimal meshing with the transmission’s differential components. This attention to detail reduces drivetrain lash and noise, contributing to a smoother and more refined driving experience.

The gear set is heat-treated to enhance hardness and durability, allowing it to withstand the increased torque loads associated with spirited driving and occasional track use. The design maintains compatibility with the factory transmission housing and bearings, facilitating a straightforward installation process without the need for custom modifications.

Installation & Fitment:

The Cusco Final Gear is a direct replacement for the stock final gear in the Subaru BRZ (2013–2017) and Toyota 86 (2017) 6-speed manual transmissions. Installation requires removal of the transmission differential cover and careful extraction of the existing final gear. It is recommended that installation be performed by a qualified technician or experienced enthusiast with proper tools and knowledge of drivetrain components.

No additional modifications to the transmission or drivetrain are necessary, and the gear set is designed to work seamlessly with the OEM clutch and driveshaft components. Proper setup and torque specifications should be followed to ensure optimal performance and longevity.

What's Included:

• One Cusco 4.556 final gear set (ring and pinion gears)
• Installation instructions and torque specifications

Ideal For:

This final gear set is ideal for Subaru BRZ and Toyota 86 owners who want to improve acceleration and throttle response without sacrificing reliability. It suits drivers who participate in autocross, track days, or spirited street driving and desire a more engaging and responsive driving experience. The gear set is also a popular choice for those upgrading other performance components, such as exhaust or intake systems, to complement overall vehicle performance.

Cusco is a Japanese automotive parts company specializing in suspension components, particularly coilover kits, and chassis reinforcements. Their products are designed to enhance vehicle handling and stability, catering to both street and track applications, and are popular among enthusiasts seeking reliable performance upgrades.